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Journal articles on the topic 'Tailorable composites'

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Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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1

Liu, Yao, Ciqun Xu, Huan Ren, Zaixin Wei, and Zidong Zhang. "Tailorable negative permittivity in Fe/BaTiO3 meta-composites." Functional Materials Letters 13, no. 03 (March 20, 2020): 2050017. http://dx.doi.org/10.1142/s1793604720500174.

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Meta-composites with negative permittivity are promising candidates for future electronics such as microwave absorbers, novel capacitors, etc. In this work, we proposed to develop the Fe/BaTiO3 meta-composites with tuneable negative permittivity. Fe content influenced the conductivity of composites and even led to the change of the conductive mechanism. The tuneable permittivity behavior was achieved by controlling the Fe fraction, and the plasma oscillation theory was employed to explain the negative permittivity behavior. Meanwhile, a frequency-switched negative permittivity was observed in this composite, which could be used to extend applications of meta-composites.
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2

Finley, James M., Joël Henry, Milo SP Shaffer, and Soraia Pimenta. "The influence of variability and defects on the mechanical performance of tailorable composites." Journal of Composite Materials 54, no. 5 (September 23, 2019): 565–89. http://dx.doi.org/10.1177/0021998319862855.

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Aligned hybrid-fibre discontinuous composites offer the ability to tailor their mechanical response through careful microstructural design. However, with tailorability comes microstructural complexity, which in turn leads to many sources of variability and defects. A virtual testing framework was further extended to investigate the influence of variability and defects on the mechanical performance of various aligned discontinuous composite material systems. This approach identified the most critical sources of variability as (i) fibre strength, (ii) the distance between fibre ends, or (iii) the level of fibre-type intermingling, depending on the material system. Fibre vacancy defects were shown to have the most significant influence on the strength and ductility of aligned discontinuous composites, although this sensitivity can be reduced through hybridisation of the fibre types.
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3

Guduric, Vera, Niall Belton, Richard Frank Richter, Anne Bernhardt, Janina Spangenberg, Chengtie Wu, Anja Lode, and Michael Gelinsky. "Tailorable Zinc-Substituted Mesoporous Bioactive Glass/Alginate-Methylcellulose Composite Bioinks." Materials 14, no. 5 (March 5, 2021): 1225. http://dx.doi.org/10.3390/ma14051225.

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Bioactive glasses have been used for bone regeneration applications thanks to their excellent osteoconductivity, an osteostimulatory effect, and high degradation rate, releasing biologically active ions. Besides these properties, mesoporous bioactive glasses (MBG) are specific for their highly ordered mesoporous channel structure and high specific surface area, making them suitable for drug and growth factor delivery. In the present study, calcium (Ca) (15 mol%) in MBG was partially and fully substituted with zinc (Zn), known for its osteogenic and antimicrobial properties. Different MBG were synthesized, containing 0, 5, 10, or 15 mol% of Zn. Up to 7 wt.% of Zn-containing MBG could be mixed into an alginate-methylcellulose blend (algMC) while maintaining rheological properties suitable for 3D printing of scaffolds with sufficient shape fidelity. The suitability of these composites for bioprinting applications has been demonstrated with immortalized human mesenchymal stem cells. Uptake of Ca and phosphorus (P) (phosphate) ions by composite scaffolds was observed, while the released concentration of Zn2+ corresponded to the initial amount of this ion in prepared glasses, suggesting that it can be controlled at the MBG synthesis step. The study introduces a tailorable bioprintable material system suitable for bone tissue engineering applications.
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4

Kashif, Muhammad, Syed TA Hamdani, Muhammad Zubair, and Yasir Nawab. "Effect of interlocking pattern on short beam strength of 3D woven composites." Journal of Composite Materials 53, no. 20 (April 2, 2019): 2789–99. http://dx.doi.org/10.1177/0021998319839441.

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Natural fiber-based preforms possess various attractive characteristics in different applications due to their light weight, value for money and compatibility with the environment. The possible tailorable shapes and mechanical properties make these more attractive for composites applications. Earlier, researchers focused on characterizing preforms for composites, but this work emphasis on the outcome of the weave patterns on composites performance. Mechanical performance (especially shear beam strength) of the 3D layer-to-layer and through-the-thickness prefroms with different interlocking patterns was deliberated. Composites were fabricated using 3D woven jute preforms and green epoxy system. The diverse performance of composites was compared. The effect of weave pattern remained prominent in their composites.
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5

Lyyra, Inari, Katri Leino, Terttu Hukka, Markus Hannula, Minna Kellomäki, and Jonathan Massera. "Impact of Glass Composition on Hydrolytic Degradation of Polylactide/Bioactive Glass Composites." Materials 14, no. 3 (February 1, 2021): 667. http://dx.doi.org/10.3390/ma14030667.

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Understanding the degradation of a composite material is crucial for tailoring its properties based on the foreseen application. In this study, poly-L,DL-lactide 70/30 (PLA70) was compounded with silicate or phosphate bioactive glass (Si-BaG and P-BaG, respectively). The composite processing was carried out without excessive thermal degradation of the polymer and resulted in porous composites with lower mechanical properties than PLA70. The loss in mechanical properties was associated with glass content rather than the glass composition. The degradation of the composites was studied for 40 weeks in Tris buffer solution Adding Si-BaG to PLA70 accelerated the polymer degradation in vitro more than adding P-BaG, despite the higher reactivity of the P-BaG. All the composites exhibited a decrease in mechanical properties and increased hydrophilicity during hydrolysis compared to the PLA70. Both glasses dissolved through the polymer matrix with a linear, predictable release rate of ions. Most of the P-BaG had dissolved before 20 weeks in vitro, while there was still Si-BaG left after 40 weeks. This study introduces new polymer/bioactive glass composites with tailorable mechanical properties and ion release for bone regeneration and fixation applications.
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6

Zhang, Quan Qing, Tao Zeng, and Su Cheng. "Preparation of Carbon Fiber Reinforced SiC Matrix Composites by PIP Process." Advanced Materials Research 683 (April 2013): 124–27. http://dx.doi.org/10.4028/www.scientific.net/amr.683.124.

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The precursor infiltration pyrolysis technology for preparation of ceramic matrix composites (CMCs) is both flexible and tailorable to shape and engineering requirements. During sintering process, PCS experienced an organic–inorganic transformation and acted as the bonding material between Carbon fiber. Compare to PCS, the ceramic conversion rate of PCS-DVB increased to 70-75%, the main reaction zone temprerature reduced to 400-800°C, which is in favor of protecting carbon fiber.
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7

Wang, Jingze, Martinson Addo Nartey, Fabrizio Scarpa, Weicheng Cui, and Hua-Xin Peng. "Design and manufacturing of highly tailorable pre-bent bi-stable composites." Composite Structures 276 (November 2021): 114519. http://dx.doi.org/10.1016/j.compstruct.2021.114519.

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8

WEI, Kai, and YongMao PEI. "Development of designing lightweight composites and structures for tailorable thermal expansion." Chinese Science Bulletin 62, no. 1 (December 1, 2016): 47–60. http://dx.doi.org/10.1360/n972016-00630.

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9

Rajak, Dipen Kumar, Pratiksha H. Wagh, and Emanoil Linul. "Manufacturing Technologies of Carbon/Glass Fiber-Reinforced Polymer Composites and Their Properties: A Review." Polymers 13, no. 21 (October 28, 2021): 3721. http://dx.doi.org/10.3390/polym13213721.

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Over the last few years, there has been a growing interest in the study of lightweight composite materials. Due to their tailorable properties and unique characteristics (high strength, flexibility and stiffness), glass (GFs) and carbon (CFs) fibers are widely used in the production of advanced polymer matrix composites. Glass Fiber-Reinforced Polymer (GFRP) and Carbon Fiber-Reinforced Polymer (CFRP) composites have been developed by different fabrication methods and are extensively used for diverse engineering applications. A considerable amount of research papers have been published on GFRP and CFRP composites, but most of them focused on particular aspects. Therefore, in this review paper, a detailed classification of the existing types of GFs and CFs, highlighting their basic properties, is presented. Further, the oldest to the newest manufacturing techniques of GFRP and CFRP composites have been collected and described in detail. Furthermore, advantages, limitations and future trends of manufacturing methodologies are emphasized. The main properties (mechanical, vibrational, environmental, tribological and thermal) of GFRP and CFRP composites were summarized and documented with results from the literature. Finally, applications and future research directions of FRP composites are addressed. The database presented herein enables a comprehensive understanding of the GFRP and CFRP composites’ behavior and it can serve as a basis for developing models for predicting their behavior.
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10

Malki, Zakaria, Chouaib Ennawaoui, Abdelowahed Hajjaji, Mohamed El Jouad, El Mehdi Laadissi, El Mehdi Loualid, and Yahia Boughaleb. "Dielectric, piezoelectric and electromechanical optimization properties of polyurethane/lead zirconate titanate composites for mechanical energy harvesting applications." Matériaux & Techniques 110, no. 5 (2022): 501. http://dx.doi.org/10.1051/mattech/2022033.

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Lead zirconate titanate (PZT) is the most common piezoelectric ceramic and exhibits excellent electromechanical conversion properties. But in order to make it more adaptable for energy harvesting applications, we resort to ceramic/polymer composites because of their excellent and tailorable properties. The advantages of this type of composite are high coupling factors due to PZT, mechanical flexibility (PU) and wide bandwidth. In this work, we studied the mechanical and electrical characteristics of this composite, as well as their behavior as a function of the percentage of PZT (by volume). Forth more, we followed the impact of this parameter on the collected energies, as well as others like frequency and resistance. The harvested power significantly increases with increasing PZT, achieving a power value up to 13.4 and 420 nW for PU/PZT 60% and PU/PZT 70%, respectively. In conclusion, composite piezoelectric films have great potential from an energy density viewpoint and could represent interesting candidates for energy harvesting applications.
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11

Fan, Guohua, Guangyue Shi, Huan Ren, Yao Liu, and Runhua Fan. "Graphene/polyphenylene sulfide composites for tailorable negative permittivity media by plasmonic oscillation." Materials Letters 257 (December 2019): 126683. http://dx.doi.org/10.1016/j.matlet.2019.126683.

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12

Liu, Hui, Lili Ma, Yichao Yan, Qingquan Lei, and Meng Xin. "Communication—Enhanced Dielectric Constant of Polymer Composites via Regulating Thermal Reduction Treatment Time of Graphene Oxide." ECS Journal of Solid State Science and Technology 11, no. 1 (January 1, 2022): 013002. http://dx.doi.org/10.1149/2162-8777/ac479a.

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The addition of graphene can change the distribution of conductive pathways in the polymer composites and further affect the dielectric properties. In this work, a facile and environmentally friendly method was proposed to enhance dielectric properties by manipulating the reduction extent of reduced graphene oxide (RGO) in polyvinylidene fluoride (PVDF) matrix just through altering the thermal reduction treatment time. Measurement results showed that the electrical percolation occurred as thermal reduction treatment time increased and the conduction mechanism changed into approximate free electron model. RGO/PVDF composites with tailorable dielectric properties were realized with a low filler loading level.
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13

Irving, Robert R. "Packaged For The Road." Mechanical Engineering 123, no. 07 (July 1, 2001): 56–59. http://dx.doi.org/10.1115/1.2001-jul-2.

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This article discusses use of metal matrix composite materials in electronic packaging. Composites can have higher thermal conductivity than traditional materials, low thermal stress, and tailorable coefficients of thermal expansion. They can reduce weight by as much as 80% and size by as much as 65%. They can also be used in low-cost, net-shape fabrication processes. The silicon carbide content can be adjusted to differing percentages to vary the composite's coefficient of thermal expansion. Traditional microelectronic packaging materials used to achieve low coefficients of thermal expansion include blends of copper and tungsten or of copper and molybdenum, and a nickel–cobalt–iron alloy called Kovar, a trademark owned by CRS Holdings Inc., a subsidiary of Carpenter Technology Corp. of Wyomissing, Pennsylvania. A key firm involved in promoting pyrolytic graphite in packaging is Advanced Ceramics Corp. of Cleveland. An expert predicts that, in the future, many of these materials will also be used in the optoelectronics industry. This will be a new market for the materials, but one with enormous potential.
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14

Schubert, Thomas, T. Weißgärber, and Bernd Kieback. "Fabrication and Properties of Copper/Carbon Composites for Thermal Management Applications." Advanced Materials Research 59 (December 2008): 169–72. http://dx.doi.org/10.4028/www.scientific.net/amr.59.169.

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The ideal thermal management material working as heat sink and heat spreader should have a high thermal conductivity combined with a reduced and tailorable thermal expansion. To meet these market demands copper composites reinforced with diamond particles were fabricated by a powder metallurgical method (powder mixing with subsequent pressure assisted consolidation). In order to design the interfacial behaviour between copper and the reinforcement different alloying elements, chromium or boron, were added to the copper matrix. The produced composites exhibit a thermal conductivity up to 700 W/mK combined with a coefficient of thermal expansion (CTE) of 7-8 x 10-6/K. The copper composites with good interfacial bonding show only small decrease in thermal conductivity and a relatively stable CTE after the thermal cycling test.
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15

Bora, Pritom J., Meghana Jois H. S., T. R. Suresh Kumar, Sutripto Khasnabis, and Praveen C. Ramamurthy. "Tailorable microwave absorption characteristics of bio waste-based composites through a macroscopic design." Materials Advances 2, no. 11 (2021): 3715–25. http://dx.doi.org/10.1039/d1ma00300c.

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16

Gu, X. F., Lian Meng Zhang, Mei Jun Yang, and Dong Ming Zhang. "Fabrication by SPS and Thermophysical Properties of High Volume Fraction SiCp/Al Matrix Composites." Key Engineering Materials 313 (July 2006): 171–76. http://dx.doi.org/10.4028/www.scientific.net/kem.313.171.

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SiCp/Al composites containing high volume fraction of SiC particles were fabricated by spark plasma sintering (SPS), and their thermophysical properties, such as thermal conductivity (TC) and coefficient of thermal expansion (CTE), were characterized. High relative density (R-D) of composites was successfully achieved through the optimization of sintering parameters, such as sintering temperature, sintering pressure and heating rate. The measured TCs of SiCp/Al composites fabricated by SPS are higher than 195W/m.k, no matter the volume fraction of SiC particles is high or low as long as the R-D is higher than 95%. The measured CTEs of SiCp/Al composites are in good agreement with the estimated values based on Kerner,s model. The high volume fraction of SiCp/Al composites are a good candidate material to substitute for conventional thermal management materials in advanced electronic packages due to its tailorable thermophysical properties.
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17

Azmi, K., M. I. M. Tajuddin, and A. Azida. "The Influences of Cu-Coated SiCp on the Porosity and Thermal Expansion Behavior of Cu-SiCp Composites." Advanced Materials Research 795 (September 2013): 241–44. http://dx.doi.org/10.4028/www.scientific.net/amr.795.241.

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The widespread use of metal matrix composites as the packaging materials is due to their tailorable thermal conductivity and coefficient of thermal expansion (CTE). For the same reason, silicon carbide reinforced copper matrix (Cu-SiCp) composites are highly rated as thermal management materials in the electronic packaging applications. However, the Cu-SiCp composites fabricated via the conventional powder metallurgy methods have inferior thermophysical properties due to the presence of porosity in the interface of copper matrix and the SiCp reinforcement. In order to improve the bonding between the two constituents, the SiCp were coated with copper via electroless coating process. Based on the experimental results, the CTE values of the copper coated Cu-SiCp composites were found significantly lower than those of the non-Coated Cu-SiCp composites. The CTEs of the composites tend to decrease as the porosity increases. The significant difference in the CTE values was related to the presence of sub-micron gap between the copper matrix and the SiCp reinforcement.
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18

Jang, Keon-Soo. "Low-density polycarbonate composites with robust hollow glass microspheres by tailorable processing variables." Polymer Testing 84 (April 2020): 106408. http://dx.doi.org/10.1016/j.polymertesting.2020.106408.

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19

Spalek, Niclas, Jakob Brunow, Moritz Braun, and Marcus Rutner. "WAAM-Fabricated Laminated Metal Composites." Metals 11, no. 12 (December 2, 2021): 1948. http://dx.doi.org/10.3390/met11121948.

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Laminated metal composites are a promising design since the hybrid design enables superior and tailorable material properties compared with bulk material. The article introduces for the first time, laminated metal composites consisting of multiple bilayers of alternating layers of ductile and high-strength steel processed by wire arc additive manufacturing (WAAM). The layup of the laminated metal composites is built up by alternating deposits made of ductile steel and high-strength steel type wires. Governing parameters in the fabrication process affecting the material properties, such as dilution, are discussed. Enhanced material properties of the laminated metal composites fabricated by WAAM are investigated under static tensile, impact and tension-tension high-cycle-fatigue loading and compared to the relating homogenous weld metal. Potential reasons for the retardation of crack propagation in laminated metal composites fabricated by WAAM compared to findings in roll-bonded laminated metal composites are discussed. WAAM is conducted by a collaborative robot providing a high level of flexibility in respect to geometry and scalability. Tailorability of material properties through WAAM-fabricated laminated metal composites adds an important layer of flexibility which has not been explored yet.
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20

Seider, Thomas, Joerg Martin, Alexander Boeddicker, Julia Rühling, Daniel Wett, Daisy Nestler, Guntram Wagner, Arved Carl Huebler, Thomas Otto, and Thomas Gessner. "Highly-Sensitive Humidity Sensors for Condition Monitoring of Hybrid Laminates." Materials Science Forum 825-826 (July 2015): 579–85. http://dx.doi.org/10.4028/www.scientific.net/msf.825-826.579.

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In recent years fibre-reinforced polymers (FRPs) gained importance in a wider field of application due to such favourable properties as low mass and tailorable mechanical strength. However, water penetrating into the lightweight material can lead to a loss of shear strength and finally to a collapse of the whole mechanical structure. Consequently, the integration of humidity sensors into compound materials is able to promote the reliability via online condition monitoring. An innovative concept is the use of ceramics-polymer-composites, which are well suited for the integration into lightweight structures during inline production. Composite and polyimide based humidity sensors have been manufactured by flexographic printing and spin-coating processes. A 5-fold increase in sensor’s capacity related to a humidity change from 10 to 80 % r.h. manifests the outstanding sensitivity of manufactured composite sensors. In addition, FRP-integrated polyimide sensors showed a significant response to water penetration, whereby the capability of condition monitoring could be confirmed.
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21

Zhao, Gege, Nianqiao Qin, An Pan, Xiaoyan Wu, Chuanyi Peng, Fei Ke, Mudassar Iqbal, Karna Ramachandraiah, and Jing Zhu. "Magnetic Nanoparticles@Metal-Organic Framework Composites as Sustainable Environment Adsorbents." Journal of Nanomaterials 2019 (October 27, 2019): 1–11. http://dx.doi.org/10.1155/2019/1454358.

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Metal-organic frameworks (MOFs) are an intriguing class of porous inorganic-organic hybrid networks synthesized from metal ions with multidentate organic ligands. MOFs have uniform and tunable cavities and tailorable chemistry, making them promising materials for hazardous component removal from the environment. Controllable integration of magnetic nanoparticles (NPs) and MOFs is leading to the creation of many novel multifunctional MOF-based composites, which exhibit advanced performance that is superior to both of the individual units. This review summarizes the recent significant advances in the development of MOF-based magnetic heterostructure materials for the removal of hazardous contaminants from the environment. The successful methods reported till date for the magnetic MOF synthesis are also provided. In the final section, we provide our views on the future development of the magnetic MOF heterostructure materials for the pollution management.
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22

Sun, Yongtao, Qiang Chen, and Nicola Pugno. "Elastic and transport properties of the tailorable multifunctional hierarchical honeycombs." Composite Structures 107 (January 2014): 698–710. http://dx.doi.org/10.1016/j.compstruct.2013.07.012.

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23

Tsoufis, T., F. Katsaros, Z. Sideratou, G. Romanos, O. Ivashenko, P. Rudolf, B. J. Kooi, S. Papageorgiou, and M. A. Karakassides. "Tailor-made graphite oxide–DAB poly(propylene imine) dendrimer intercalated hybrids and their potential for efficient CO2 adsorption." Chem. Commun. 50, no. 75 (2014): 10967–70. http://dx.doi.org/10.1039/c4cc03996c.

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24

Xu, Wenfeng, Zhicheng Shi, Shengbiao Sun, Liang Sun, Huanlei Wang, Kai Sun, and Runhua Fan. "Tailorable high-k and negative-k percolation behaviors in PPy/P(VDF-HFP) composites." Composites Communications 28 (December 2021): 100945. http://dx.doi.org/10.1016/j.coco.2021.100945.

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25

Yue, Ludan, Chen Sun, Qian Cheng, Yuanfu Ding, Jianwen Wei, and Ruibing Wang. "Gold nanorods with a noncovalently tailorable surface for multi-modality image-guided chemo-photothermal cancer therapy." Chemical Communications 55, no. 90 (2019): 13506–9. http://dx.doi.org/10.1039/c9cc07131h.

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26

Taylor, Spencer V., Abdel R. Moustafa, and Zachary C. Cordero. "Interpenetrating Lattices with Tailorable Energy Absorption in Tension." Acta Materialia 216 (September 2021): 117115. http://dx.doi.org/10.1016/j.actamat.2021.117115.

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27

Zhu, Jing, Jingyi Zhang, Ruiming Lin, Benwei Fu, Chengyi Song, Wen Shang, Peng Tao, and Tao Deng. "Rapid one-step scalable microwave synthesis of Ti3C2Tx MXene." Chemical Communications 57, no. 94 (2021): 12611–14. http://dx.doi.org/10.1039/d1cc04989e.

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28

Tang, Haishan, Xinli Jiang, Ling Ling, Li Li, and Yujin Hu. "Highly tailorable electromechanical properties of auxetic piezoelectric ceramics with ultra‐low porosity." Journal of the American Ceramic Society 103, no. 11 (August 8, 2020): 6330–47. http://dx.doi.org/10.1111/jace.17356.

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29

Nesmelov, Andrei, David Lee, Christopher Bejger, Margaret Kocherga, Zachary Lyles, Madeline K. Greenier, Ashley Ariel Vitallo, Ghallia Kaouk, Daniel S. Jones, and Thomas A. Schmedake. "Accessing new microporous polyspirobifluorenes via a C/Si switch." Chemical Communications 56, no. 68 (2020): 9846–49. http://dx.doi.org/10.1039/d0cc02767g.

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A C/Si switch provides easy access to polybrominated spirosilabifluorenes with tailorable regioselectivities. Yamamoto coupling leads to fluorescent microporous materials that can act as a sensor for nitroaromatics.
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30

Li, Aowen, Meimei Zhou, Pingping Luo, Jiaxin Shang, Pengbo Wang, and Luxue Lyu. "Deposition of MOFs on Polydopamine-Modified Electrospun Polyvinyl Alcohol/Silica Nanofibers Mats for Chloramphenicol Adsorption in Water." Nano 15, no. 04 (April 2020): 2050046. http://dx.doi.org/10.1142/s1793292020500460.

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Nanofiber mats produced by electrospinning, with the advantages of specific surface area, porosity and chemical tenability, are an ideal support material for deposition of metal[Formula: see text]organic framework (MOF) crystals. In this study, four types of MOFs (MIL-53(Al), ZIF-8, UiO-66-NH2 and NH2-MIL-125(Ti)) were deposited on polydopamine (PDA)-modified electrospun polyvinyl alcohol (PVA)/SiO2 organic[Formula: see text]inorganic hybrid nanofiber mats by bulky synthesis. Because of the formation of Si–O–C–O–Si bridges between PVA chains and silica network, electrospun PVA/SiO2 organic[Formula: see text]inorganic hybrid nanofiber mats are quite stable in water or organic solvents and at high temperature are suitable as supports for MOFs deposition. The PDA layer, which exhibits a powerful adhesive ability to attach foreign objects, can effectively improve growth of MOFs on the surface of PVA/SiO2 nanofiber mats. The obtained MOF composites combining the unique properties of electrospun nanofibers mats and MOFs particles become flexible and tailorable, greatly expanding the application range of MOFs materials. The synthesized MOF composites were used to adsorb chloramphenicol (CAP) in water. It was found that the four MOF composites could remove CAP from water effectively and MIL-53(Al) composite had the highest adsorption capacity due to the higher specific surface area.
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31

Niazi, Abdul Rehman, Shu Kui Li, Ying Chun Wang, Zhi Yu Hu, and Usman Zahid. "Thermo Physical Properties of Copper/Diamond Composites Fabricated by Spark Plasma Sintering." Advanced Materials Research 712-715 (June 2013): 208–12. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.208.

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In modern electronic devices overheating has become a critical issue due to high power density and improved performance. In order to overcome this critical issue, the demands for materials having high thermal conductivity with low and tailorable coefficient of thermal expansions are required. This demand can be fulfilled by synthesizing copper/diamond composites, which show excellent thermo-physical properties, compatible with semiconductors and can be used in heat sink and thermal management applications. Copper/Diamond composites were fabricated by Spark Plasma Sintering Method (SPS) by electrolessly copper coated diamond particles pre coated with 1wt% Chromium. The prepared composites were investigated for various properties like thermal conductivity, thermal expansion and characterized by Scanning Electron Microscopy (S.E.M) and X-ray diffraction (X.R.D) analyses. The effect of process parameters were also taken into account. Thermal conductivity of copper/diamond composites fabricated by SPS at 1100°C under pressure of 40MPa, obtained in this case was 400 W/m•K , which is quite higher than those heat sink materials being already in use.
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32

Agrawal, Dinesh K., Girish Harshé, Else Breval, and Rustum Roy. "[NZP], NaZr2P3O12-type materials for protection of carbon-carbon composites." Journal of Materials Research 11, no. 12 (December 1996): 3158–63. http://dx.doi.org/10.1557/jmr.1996.0401.

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Carbon-carbon composites, if not suitably protected, suffer from the problem of oxidation of the surface in normal atmospheres at temperatures above 350 °C. For this reason they need to be protected from oxidizing environments by either using an impermeable coating, or using a sacrificial protective coating of a suitable material, and/or doping of an oxidation inhibitor in the carbon. In this study we have used a new family of materials with tailorable thermal expansion characteristics, namely, the [NZP] family as the materials for developing a suitable coating material for C-C composites. The candidates selected for matching thermal expansion with that of carbon are Ca0.5Sr0.5Zr4P6O24, SrZr4P6O24, and Ba1.175Zr4P5.65Si0.35O24. They can be sintered in inert atmosphere without decomposition of the phases, and can be hot-pressed in inert atmosphere with C-C composites at 1250 °C without decomposition or chemical interaction. They are stable in the presence of carbon up to 1200 °C for at least a period of 4 h. They also do not show any weight loss after exposure to various temperatures up to 1200 °C for 4 h.
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33

Ai, L., and X. L. Gao. "Micromechanical modeling of 3D printable interpenetrating phase composites with tailorable effective elastic properties including negative Poisson's ratio." Journal of Micromechanics and Molecular Physics 02, no. 04 (December 2017): 1750015. http://dx.doi.org/10.1142/s2424913017500151.

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3D printable two-phase interpenetrating phase composites (IPCs) are designed by embedding a 3D periodic re-entrant lattice structure (as the reinforcing phase) in a matrix phase. These IPCs display the cubic or tetragonal symmetry. A micromechanical model is developed to evaluate effective elastic properties of the IPCs. Effective Young's moduli, shear moduli and Poisson's ratios (PRs) of each IPC are determined from the effective stiffness and compliance matrices of the composite, which are obtained through a homogenization analysis using a unit cell-based finite element (FE) model incorporating periodic boundary conditions. The FE simulation results are also compared with those based on various analytical bounding techniques in micromechanics, including the Voigt–Reuss, Hashin–Shtrikman, and Tuchinskii bounds. The effective properties of the IPC can be tailored by adjusting five geometrical parameters, including two strut lengths, two re-entrant angles and one strut diameter, and elastic properties of the two constituent materials. The numerical results reveal that IPCs with a negative PR can be generated by using a compliant matrix material and large re-entrant angles. In addition, it is found that the two re-entrant angles can greatly affect other effective elastic properties of the IPC: the effective shear modulus can be enhanced, while the effective Young's modulus can be enhanced or compromised with the increase of the re-entrant angles. Furthermore, it is seen that by adjusting one of the two re-entrant angles or one of the two strut lengths, the material symmetry exhibited by the IPC can be changed from cubic to tetragonal.
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Peng, Yong, Yiyun Wu, Shixian Li, Kui Wang, Song Yao, Zhixiang Liu, and Hamid Garmestani. "Tailorable rigidity and energy-absorption capability of 3D printed continuous carbon fiber reinforced polyamide composites." Composites Science and Technology 199 (October 2020): 108337. http://dx.doi.org/10.1016/j.compscitech.2020.108337.

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Yi, Seungryeol, Woon Jin Chung, and Jong Heo. "Stable and Color-Tailorable White Light from Blue LEDs Using Color-Converting Phosphor-Glass Composites." Journal of the American Ceramic Society 97, no. 2 (December 23, 2013): 342–45. http://dx.doi.org/10.1111/jace.12739.

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36

Saghaian, S. M., H. E. Karaca, H. Tobe, A. S. Turabi, S. Saedi, S. E. Saghaian, Y. I. Chumlyakov, and R. D. Noebe. "High strength NiTiHf shape memory alloys with tailorable properties." Acta Materialia 134 (August 2017): 211–20. http://dx.doi.org/10.1016/j.actamat.2017.05.065.

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37

Fan, Guohua, Kai Sun, Qing Hou, Zhongyang Wang, Yao Liu, and Runhua Fan. "Epsilon-negative media from the viewpoint of materials science." EPJ Applied Metamaterials 8 (2021): 11. http://dx.doi.org/10.1051/epjam/2021005.

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A comprehensive review of the fundamentals and applications of epsilon-negative materials is presented in this paper. Percolative composites, as well as homogeneous ceramics or polymers, have been investigated to obtain the tailorable epsilon-negative properties. It's confirmed the anomalous epsilon-negative property can be realized in conventional materials. Meanwhile, from the perspective of materials science, the relationship between the negative permittivity and the composition and microstructure of materials has been clarified. It's demonstrated that the epsilon-negative performance is attributed to the plasmonic response of delocalized electrons within the materials and can be modulated by it. Moreover, the potential applications of epsilon-negative materials in electromagnetic interference shielding, laminated composites for multilayered capacitance, coil-less electric inductors, and epsilon-near-zero metamaterials are reviewed. The development of epsilon-negative materials has enriched the connotation of metamaterials and advanced functional materials, and has accelerated the integration of metamaterials and natural materials.
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38

Ahmad Fauzi, Asfa Amalia, Azlin Fazlina Osman, Awad A. Alrashdi, Zaleha Mustafa, and Khairul Anwar Abdul Halim. "On the Use of Dolomite as a Mineral Filler and Co-Filler in the Field of Polymer Composites: A Review." Polymers 14, no. 14 (July 13, 2022): 2843. http://dx.doi.org/10.3390/polym14142843.

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Polymers are being used in many applications all around the world. However, there are some drawbacks in the properties of polymers that could hamper their usage in certain applications. Therefore, a new material polymer composite was introduced. A polymer composite is a polymer-based material with the addition of a filler. Many researchers have reported the improvement in the properties of a polymer when a filler was introduced. This helps minimize the disadvantages of using a polymer. As a result, polymer composite products can be used in many industries, such as automobile, aerospace, biomedical, and packaging. Fillers derived from natural minerals, such as dolomite, are among the best reinforcement materials for polymeric materials because they are plentiful and low cost, have high rigidity and hardness, and even have tailorable surface chemistry. The use of dolomite as a filler in a polymer composite system has gained increasing attention in recent years after researchers successfully proved that it is capable of improving the mechanical, physical, and thermal properties of various polymeric materials. However, chemical or physical treatment/modification of raw dolomite is needed in order to prepare it as an efficient reinforcing filler. This procedure helps to improve the performance of the resultant polymer composites. This article reviews the usage of dolomite as a filler in a variety of polymeric materials and how it improved the performance of the polymer composite materials. It also highlights several methods that have been used for the purpose dolomite’s treatment/modification. Furthermore, the role of dolomite as a co-filler or a hybrid filler in a polymer composite system is also discussed, revealing the great potential and prospect of this mineral filler in the field of polymer composites for advanced applications.
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Li, Ting, Chongfeng Guo, Puju Zhao, Lin Li, and Jung Hyun Jeong. "Tailorable Multicolor Up-conversion Emissions in Tm3+ /Ho3+ /Yb3+ Co-Doped LiLa(MoO4 )2." Journal of the American Ceramic Society 96, no. 4 (January 10, 2013): 1193–97. http://dx.doi.org/10.1111/jace.12153.

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Pitchiya, Aswin Prathap, Ngoc-Tram Le, Zackary A. Putnam, Michael Harrington, and Sitaraman Krishnan. "Microporous Graphite Composites of Tailorable Porosity, Surface Wettability, and Water Permeability for Fuel Cell Bipolar Plates." Industrial & Engineering Chemistry Research 60, no. 28 (July 8, 2021): 10203–16. http://dx.doi.org/10.1021/acs.iecr.1c01737.

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41

Ying, Zeren, Defeng Wu, Ming Zhang, and Yaxin Qiu. "Polylactide/basalt fiber composites with tailorable mechanical properties: Effect of surface treatment of fibers and annealing." Composite Structures 176 (September 2017): 1020–27. http://dx.doi.org/10.1016/j.compstruct.2017.06.042.

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42

Qu, Yunpeng, Hanying Wang, Guohua Fan, Peitao Xie, and Yao Liu. "Meta-composites: NiO supported 3D carbon networks structured by 1D building blocks towards tailorable negative permittivity." Journal of Materials Science: Materials in Electronics 29, no. 21 (September 8, 2018): 18815–27. http://dx.doi.org/10.1007/s10854-018-0007-z.

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43

Li, Jiahao, Qingsheng Yang, Yuling Wei, Ning Huang, and Ran Tao. "A synergistic design of composite metamaterial with drastically tailorable thermal expansion and Poisson's ratio." Composite Structures 275 (November 2021): 114446. http://dx.doi.org/10.1016/j.compstruct.2021.114446.

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44

Fereiduni, Eskandar, Ali Ghasemi, and Mohamed Elbestawi. "Selective Laser Melting of Aluminum and Titanium Matrix Composites: Recent Progress and Potential Applications in the Aerospace Industry." Aerospace 7, no. 6 (June 11, 2020): 77. http://dx.doi.org/10.3390/aerospace7060077.

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Selective laser melting (SLM) is a near-net-shape time- and cost-effective manufacturing technique, which can create strong and efficient components with potential applications in the aerospace industry. To meet the requirements of the growing aerospace industrial demands, lighter materials with enhanced mechanical properties are of the utmost need. Metal matrix composites (MMCs) are extraordinary engineering materials with tailorable properties, bilaterally benefiting from the desired properties of reinforcement and matrix constituents. Among a wide range of MMCs currently available, aluminum matrix composites (AMCs) and titanium matrix composites (TMCs) are highly potential candidates for aerospace applications owing to their outstanding strength-to-weight ratio. However, the feasibility of SLM-fabricated composites utilization in aerospace applications is still challenging. This review addresses the SLM of AMCs/TMCs by considering the processability (densification level) and microstructural evolutions as the most significant factors determining the mechanical properties of the final part. The mechanical properties of fabricated MMCs are assessed in terms of hardness, tensile/compressive strength, ductility, and wear resistance, and are compared to their monolithic states. The knowledge gained from process–microstructure–mechanical properties relationship investigations can pave the way to make the existing materials better and invent new materials compatible with growing aerospace industrial demands.
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Cavalu, Simona, Luminita Fritea, Marcel Brocks, Katia Barbaro, Gelu Murvai, Traian Octavian Costea, Iulian Antoniac, et al. "Novel Hybrid Composites Based on PVA/SeTiO2 Nanoparticles and Natural Hydroxyapatite for Orthopedic Applications: Correlations between Structural, Morphological and Biocompatibility Properties." Materials 13, no. 9 (May 1, 2020): 2077. http://dx.doi.org/10.3390/ma13092077.

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The properties of poly(vinyl alcohol) (PVA)-based composites recommend this material as a good candidate for the replacement of damaged cartilage, subchondral bone, meniscus, humeral joint and other orthopedic applications. The manufacturing process can be manipulated to generate the desired biomechanical properties. However, the main shortcomings of PVA hydrogels are related to poor strength and bioactivity. To overcome this situation, reinforcing elements are added to the PVA matrix. The aim of our work was to develop and characterize a novel composition based on PVA reinforced with Se-doped TiO2 nanoparticles and natural hydroxyapatite (HA), for possible orthopedic applications. The PVA/Se-doped TiO2 composites with and without HA were structurally investigated by FTIR and XRD, in order to confirm the incorporation of the inorganic phase in the polymeric structure, and by SEM and XRF, to evidence the ultrastructural details and dispersion of nanoparticles in the PVA matrix. Both the mechanical and structural properties of the composites demonstrated a synergic reinforcing effect of HA and Se-doped TiO2 nanoparticles. Moreover, the tailorable properties of the composites were proved by the viability and differentiation potential of the bone marrow mesenchymal stem cells (BMMSC) to osteogenic, chondrogenic and adipogenic lineages. The novel hybrid PVA composites show suitable structural, mechanical and biological features to be considered as a promising biomaterial for articular cartilage and subchondral bone repair.
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Xu, Liang, Lei Su, Hongjie Wang, Hongfei Gao, De Lu, Kang Peng, Min Niu, and Zhixin Cai. "Tuning stoichiometry of high‐entropy oxides for tailorable thermal expansion coefficients and low thermal conductivity." Journal of the American Ceramic Society 105, no. 2 (October 17, 2021): 1548–57. http://dx.doi.org/10.1111/jace.18155.

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47

Gianchandani, Pardeep Kumar, Valentina Casalegno, Milena Salvo, Monica Ferraris, and Ivo Dlouhý. "“Refractory Metal, RM – Wrap”: A tailorable, pressure-less joining technology." Ceramics International 45, no. 4 (March 2019): 4824–34. http://dx.doi.org/10.1016/j.ceramint.2018.11.178.

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48

Jain, Minkle, and Kazuaki Matsumura. "Polyampholyte- and nanosilicate-based soft bionanocomposites with tailorable mechanical and cell adhesion properties." Journal of Biomedical Materials Research Part A 104, no. 6 (February 17, 2016): 1379–86. http://dx.doi.org/10.1002/jbm.a.35672.

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49

Radulescu, Diana-Elena, Ionela Andreea Neacsu, Alexandru-Mihai Grumezescu, and Ecaterina Andronescu. "Novel Trends into the Development of Natural Hydroxyapatite-Based Polymeric Composites for Bone Tissue Engineering." Polymers 14, no. 5 (February 24, 2022): 899. http://dx.doi.org/10.3390/polym14050899.

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In recent years, the number of people needing bone replacements for the treatment of defects caused by chronic diseases or accidents has continuously increased. To solve these problems, tissue engineering has gained significant attention in the biomedical field, by focusing on the development of suitable materials that improve osseointegration and biologic activity. In this direction, the development of an ideal material that provides good osseointegration, increased antimicrobial activity and preserves good mechanical properties has been the main challenge. Currently, bone tissue engineering focuses on the development of materials with tailorable properties, by combining polymers and ceramics to meet the necessary complex requirements. This study presents the main polymers applied in tissue engineering, considering their advantages and drawbacks. Considering the potential disadvantages of polymers, improving the applicability of the material and the combination with a ceramic material is the optimum pathway to increase the mechanical stability and mineralization process. Thus, ceramic materials obtained from natural sources (e.g., hydroxyapatite) are preferred to improve bioactivity, due to their similarity to the native hydroxyapatite found in the composition of human bone.
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Lei, Xin, and Cliff J. Lissenden. "Pressure Sensitive Nonassociative Plasticity Model for DRA Composites." Journal of Engineering Materials and Technology 129, no. 2 (September 13, 2006): 255–64. http://dx.doi.org/10.1115/1.2400273.

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Discontinuously reinforced aluminum (DRA) is currently used where design considerations include specific stiffness, tailorable coefficient of thermal expansion, or wear resistance. Plastic deformation plays a role in failures due to low cycle fatigue or simple ductile overload. DRA is known to exhibit pressure dependent yielding. Plastic deformation in metals is widely regarded to be incompressible, or very nearly so. A continuum plasticity model is developed that includes a Drucker–Prager pressure dependent yield function, plastic incompressibility via a nonassociative Prandtl–Reuss flow rule, and a generalized Armstrong–Frederick kinematic hardening law. The model is implemented using a return mapping algorithm with backward Euler integration for stability and the Newton method to determine the plastic multiplier. Material parameters are characterized from uniaxial tension and uniaxial compression experimental results. Model predictions are compared to experimental results for a nonproportional compression–shear load path. The tangent stiffness tensor is nonsymmetric because the flow rule is not associated with the yield function, which means that the commonly used algorithms that require symmetric matrices cannot be used with this material model. Model correlations with tension and compression loadings are excellent. Model predictions of shear and nonproportional compression–shear loadings are reasonably good. The nonassociative flow rule could not be validated by comparison of the plastic strain rate direction with the yield function and the flow potential due to scatter in the experimental results. The model is capable of predicting the material response obtained in the experiments, but additional validation is necessary for the condition of high hydrostatic pressure.
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