Academic literature on the topic 'Magnetic abrasive powder'

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Journal articles on the topic "Magnetic abrasive powder"

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Patil, Mahadev Gouda, Kamlesh Chandra, and P. S. Misra. "Study of Magnetic Abrasive Finishing Using Mechanically Alloyed Magnetic Abrasives." Advanced Materials Research 585 (November 2012): 517–21. http://dx.doi.org/10.4028/www.scientific.net/amr.585.517.

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The finishing characteristics of mechanically alloyed magnetic abrasives used in cylindrical magnetic abrasive finishing (MAF) are presented in this study. Mechanical alloying is a solid state powder processing technique, where the powder particles are subjected to impact by the balls in a high energy ball mill or attritor at room temperature. After the process, fine magnetic abrasives are obtained in which the abrasive particles are attached to the base metal matrix without any bonding material. The magnetic particle used in the magnetic abrasive production is iron powder and the abrasive is aluminium oxide. Magnetic abrasives play the role of cutting tools in MAF, which is emerging as an important non-conventional machining process. The experiments performed on stainless steel tubes examine the effects of varying the quantity of magnetic abrasives, magnetic flux density, speed of rotation of the workpiece and amount of lubricant. The surface roughness measurements demonstrate the effects of the abrasive behaviour on the surface modification. The surface roughness was analysed in terms of percentage improvement in surface finish (PISF). The obtained maximum PISF was 40 % and the minimum surface roughness was 0.63 μm Ra.
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Hanada, Kotaro, and Hitomi Yamaguchi. "Development of Spherical Iron-Based Composite Powder with Carried Alumina Abrasive Grains by Plasma Spray." Advanced Materials Research 75 (June 2009): 43–46. http://dx.doi.org/10.4028/www.scientific.net/amr.75.43.

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This paper describes the development of spherical iron-based composite powder with carried alumina abrasive grains made by a plasma spray technique. Carbonyl iron powder (7.2 μm average size) and alumina abrasive grains (0.3 μm average size) are sprayed into the plasma flame from the respective nozzles simultaneously, or their mechanical mixture is directly plasma-sprayed. In case of the composite powder obtained by the direct spray method, the alumina abrasives are well carried on the carbonyl iron particles. However, a plasma current of more than 100 A causes melting and vaporizing of the alumina abrasives;, consequently the carbonyl iron and alumina abrasives are separated. The magnetic abrasive experiments with the composite powder developed are made for SUS304 stainless steel plate, and the result shows that the developed composite powder has high potential abrasive performance.
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Singh, Palwinder, Lakhvir Singh, and Sehijpal Singh. "Finishing of Tubes using Bonded Magnetic Abrasive Powder in an Abrasive Medium." Powder Metallurgy Progress 20, no. 1 (June 1, 2020): 1–11. http://dx.doi.org/10.2478/pmp-2020-0001.

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Abstract Magnetic abrasive flow finishing (MAFF) is an unconventional process capable of producing fine finishing with machining forces controlled by a magnetic field. This process can be utilized for hard to achieve inner surfaces through the activity of extrusion pressure, combined with abrasion activity of a magnetic abrasive powder (MAP) in a polymeric medium. MAP is the key component in securing systematic removal of material and a decent surface finish in MAFF. The research background disclosed various methods such as sintering, adhesive based, mechanical alloying, plasma based, chemical, etc. for the production of bonded MAP. This investigation proposes bonded MAP produced by mechanical alloying followed by heat treatment. The experiments have been conducted on aluminum tubes to investigate the influence of different parameters like magnetic field density, extrusion pressure and number of working cycles. The bonded magnetic abrasive powder used in MAFF is very effective to finish tubes’ inner surfaces and finishing is significantly improved after processing.
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Baron, Yuri M., S. L. Ko, and Jung Il Park. "Characterization of the Magnetic Abrasive Finishing Method and Its Application to Deburring." Key Engineering Materials 291-292 (August 2005): 291–96. http://dx.doi.org/10.4028/www.scientific.net/kem.291-292.291.

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This paper analyzes the effectiveness of using Magnetic Abrasive Finishing (MAF) to remove burrs on drilled holes located on planes. Basic elements of the equipment in this method are a magnetic inductor; powder with magnetic and abrasive properties, which serves as the cutting tool; and the face electromagnetic inductor and the vibrating table, which were developed for deburring and finishing on flat surfaces. The performance of magnetic abrasive powders produced by industry is also evaluated. A new technique was developed to compare the performance of the magnetic abrasive powders and to find the powder that is appropriate for finishing and deburring drilled holes placed on a plane steel surface.
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Yin, Cheng, Lida Heng, Jeong Kim, Min Kim, and Sang Mun. "Development of a New Ecological Magnetic Abrasive Tool for Finishing Bio-Wire Material." Materials 12, no. 5 (March 1, 2019): 714. http://dx.doi.org/10.3390/ma12050714.

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This study proposes a new wire magnetic abrasive finishing (WMAF) process for finishing 316L SUS wire using ecological magnetic abrasive tools. 316L SUS wire is a biomaterial that is generally used in medical applications (e.g., coronary stent, orthodontics, and implantation). In medical applications of this material, a smooth surface is commonly required. Therefore, a new WMAF process using ecological magnetic abrasive tools was developed to improve the surface quality and physical properties of this biomaterial. In this study, the WMAF process of 316L SUS wire is separated into two finishing processes: (i) WMAF with ecological magnetic abrasive tools, and (ii) WMAF with industrial magnetic abrasive tools. The ecological magnetic abrasive tools consist of cuttlefish bone abrasives, olive oil, electrolytic iron powder, and diamond abrasive paste. The finishing characteristics of the two types of abrasive tools were also explored for different input parameters (i.e., vibrating magnetic field and rotating magnetic field). The results show that ecological magnetic abrasive tools can improve the initial surface roughness of 316L SUS wire from 0.23 µm to 0.06 µm. It can be concluded that ecological magnetic abrasive tools can replace industrial magnetic abrasive tools.
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Zhao, Zeng Dian, Yu Hong Huang, and Yu Gang Zhao. "Preparation of Magnetic Abrasive by Sintering Method." Advanced Materials Research 135 (October 2010): 382–87. http://dx.doi.org/10.4028/www.scientific.net/amr.135.382.

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In this paper, ferrosilicon powder was used as the ferromagnetic phase, corundum powder as the abrasive phase, high temperature inorganic binder as the adhesive, and after the ferrosilicon powder was modified, a series of magnetic abrasive was obtained by sintering method. Scanning electron microscope (SEM) and Energy dispersive spectrometer (EDS) were respectively used to characterize the morphology and elemental composition of magnetic abrasive. and through experiments carried out on the magnetic abrasive grinding performance testing and durability analysis. The experimental results showed that the magnetic abrasive prepared had good polishing ability and longer using time, and the surface roughness of the grinding sample can reach 0.12μm and the using time is up to 25 min.
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Bansal, Ankit, Ravi Butola, M. S. Niranjan, Qasim Murtaza, and Umang Soni. "Synthesis and Characterization of Sintered Magnetic Abrasives Used in Advance Finishing Processes Through Powder Metallurgy Route." INTERNATIONAL JOURNAL OF ADVANCED PRODUCTION AND INDUSTRIAL ENGINEERING 5, no. 3 (July 5, 2020): 27–33. http://dx.doi.org/10.35121/ijapie202007345.

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The magnetic field-assisted surface finishing process needs a sintered magnetic abrasive powder which could be a mixture of SiC and CIP particles. Tube furnaces have been used to develop SiC-based sintered magnetic abrasives. The focus of this article is to investigate the anticipated results and to carry out the fabrication setup of sintered magnetic abrasive for the super-finishing of composite materials and their coating. The article depicts a significant effect on the mechanical properties such as microhardness and compressive strength and analyzes SiC and CIP composite-based microstructure. The synthesis of the powder involves four major processes like blending; compaction and sintering. Characterization of sintered magnetic abrasives has been done using SEM, EDS, XRD to study morphology, chemical composition, crystallography, and magnetic properties. The results have been compared with the un-bonded magnetic abrasives. This paper also presents a brief literature review of the state-of-the-art technology of high-performance surface finishing processes used in manufacturing industries. Finally, the downside and stray aspects of the related literature are spotlighted and a list of prospective issues for future research directions is recommended.
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Krymskii, M. D. "Magnetic properties of a powder magnetic-abrasive tool." Powder Metallurgy and Metal Ceramics 33, no. 1-2 (1995): 33–36. http://dx.doi.org/10.1007/bf00559704.

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Jo, S. R., S. L. Ko, and Yuri M. Baron. "Effective Deburring of the Burr at Intersecting Hole by Permanent Magnet Inductor." Advanced Materials Research 24-25 (September 2007): 29–38. http://dx.doi.org/10.4028/www.scientific.net/amr.24-25.29.

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The sharp burrs produced by plastic deformation during machining of the precision components deteriorates the precision and performance of a machine. Thus, effective removal of the burrs may improve productivity and performance of the machinery. This study was conducted based on the experiment to remove fine burrs produced during machining process using the magnetic abrasive finishing method. The magnetic abrasive finishing using the abrasive feature of an abrasive and the magnetic nature of iron is an abrasive method to brush the burrs with iron powder that has a cohesive power due to the line of induction. The purpose of this study is to remove the burrs at intersecting holes which are difficult to access with tools, using the magnetic abrasive finishing method. Special tool is designed for deburring micro burr at intersecting holes. To find the proper deburring condition, gap distance, rotational speed of inductor, components of powder and effect of coolant are analyzed.
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Tatarkin, Evgeniy, Aleksey Ikonnikov, Tatyana Schrayner, and Roman Grebenkov. "Modeling of the Magnetic Abrasive Machining Process of Flat Surface Workpieces on Numerically Controlled Machine Tools." Applied Mechanics and Materials 788 (August 2015): 69–74. http://dx.doi.org/10.4028/www.scientific.net/amm.788.69.

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The article describes a mathematical model of the circular motion trajectory of a magnetic abrasive powder portion which participates in the magnetic abrasive machining process of flat surface workpieces. The motion trajectory of a magnetic abrasive powder portion is observed. The main formulas, assumptions and recommendations on the implementation of the mathematical model are introduced. Taking into account the feed rate of the machine table, rotational speed and the radius of the cylindrical magnetic inductor, the model allows determining an optimal amount of the magnetic abrasive powder portion which can provide the required efficiency of the finishing process. The magnetic abrasive machining process does not have any fixed standard cutting parameters, so they have to be readjusted every time. The given model can be used to predict the parameters of the finishing process of sophisticated flat surface workpieces.
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Dissertations / Theses on the topic "Magnetic abrasive powder"

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Іщик, Дмитро Володимирович. "Підвищення якості свердел із швидкорізальної сталі при магнітно-абразивному обробленні." Master's thesis, Київ, 2018. https://ela.kpi.ua/handle/123456789/26703.

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Дисертація на здобуття наукового ступеня магістра за спеціальністю 133 – Галузеве машинобудування. – Національний технічний університет України "Київський політехнічний інститут імені Ігоря Сікорського". – Київ, 2018. Проаналізувавши сучасні методи покращення якості та продуктивності різальної кромки металорізального інструменту, на прикладі свердел, було обрано метод магнітно-абразивного оброблення. Даний метод дозволив досягти значного покращення якості різальної кромки (шорсткості), збільшення значення твердості поверхневого шару і відповідно – періоду стійкості свердла. В дисертації проаналізовано шляхи вирішення проблеми стійкості інструменту при роботі, досліджено процес МАО шляхом проведення експлуатаційних випробувань свердел, оброблених цим методом. Магнітно-абразивні порошки було підібрано зважаючи на поперед ні роботи в цій галузі, а саме – використали порошки великих фракцій. Результати досліджень підтвердили доцільність їх використання наряду з порошками малих фракцій. Експериментальні дані використані та впроваджені на підприємстві ДП «Київський бронетанковий завод».
Dissertation for a Master's degree in specialty 133 – Branch mechanical - engineering. - National Technical University of Ukraine "Kyiv Polytechnic Institute named after Igor Sikorsky". - Kyiv, 2018. Having analyzed the modern methods of improving the quality and productivity of the cutting edge of the metal cutting tool, on the example of the drill, the method of magnetic abrasive treatment was chosen. This method has allowed to achieve a significant improvement in the quality of the cutting edge (roughness), an increase in the hardness of the surface layer and, respectively, the period of drill firmness. In the dissertation the ways of solving the problem of instrument stability during work are analyzed, the process of MAO is investigated by carrying out operational tests of the drills processed by this method. Magnetically-abrasive powders were selected in the light of previous work in this field, namely, the use of powders of large fractions. The results of the studies confirmed the feasibility of their use, along with small fractions powders. Experimental data were used and implemented at the enterprise "Kyiv Armored Plant".
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Book chapters on the topic "Magnetic abrasive powder"

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Lebedev, Vladimir, Svetlana Yakubovskaya, Eshreb Dzhemilov, and Ruslan Dzhemalyadinov. "Cladded Ferromagnetic Powders for Magnetic Abrasive Working of Hard Alloys." In Lecture Notes in Mechanical Engineering, 302–12. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-91327-4_30.

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Yuan, Yongtao, Liqiang Qi, Qian Yang, and Jing Liu. "Experimental Study on Ash-unloader for Magnetic Seal without Abrasion." In Challenges of Power Engineering and Environment, 705–9. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-76694-0_132.

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Conference papers on the topic "Magnetic abrasive powder"

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Ikonnikov, A. M. "Analysis of Magnetic Forces in the Working Clearance with Magnetic-Abrasive Treatment of Inductors on Standing Magnets." In Modern Trends in Manufacturing Technologies and Equipment. Materials Research Forum LLC, 2022. http://dx.doi.org/10.21741/9781644901755-31.

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Abstract. The authors describe the method of calculating the magnetic forces in the working gap in the case of magnetically abrasive machining of flat surfaces of billets from magnetic materials by the periphery of a circular inductor on permanent magnets. The application of the software package ANSIS Maxwell for the calculation of the magnetic induction method in the working gap and the magnetic forces of the magnetically abrasive powder acting on the grain is shown. As a result of the work, the magnetic induction in the working gap was calculated for magnetically abrasive machining of flat surfaces of billets from magnetic materials by an inducer on permanent magnets. Also, calculations showed the distribution of the magnetic abrasive powder in the working gap, depending on the material of the workpiece being processed. In the case of magnetically abrasive machining of a magnetic workpiece, the powder in the working gap is concentrated in the zones with the greatest density of force lines - under the inductor poles. An analysis is made of the distribution of magnetic forces in the working gap during magnetic abrasive machining.
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Tehrani, Alireza Fadaei, Mehrdad Givi, and Ashkan Sepehr Afghan. "Investigation of Magnetic Abrasive Finishing for Internal Polishing of Aluminium Tubes Using DOE." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-38811.

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Magnetic Abrasive Finishing (MAF) is one of the nontraditional machining methods with vast applications in high-tech industries such as medical, aerospace and semiconductor manufacturing areas. Several researches have been done in order to studying the influence of various parameters on magnetic abrasive finishing process and characteristics of finished surface. The present paper investigates the effects of some effective parameters such as mesh size of the abrasives, the weight of the abrasive powder and the number of cycles on internal surface roughness of Aluminum tube. The optimum percentage of oil should be added to the abrasive powder was attained and applied for the main tests. Then, design of experiments (DOE) methods and Analysis of Variance (ANOVA) have been applied to determine significant factors and also to obtain an equation based on data regression.
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Ma, Lei, Toshiki Hirogaki, Eiichi Aoyama, Wei Wu, and Tatsuya Furuki. "Control of Pressing Force in Magnetic Abrasive Finishing Using Permanent Magnet End-Mill Tool." In ASME 2017 12th International Manufacturing Science and Engineering Conference collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/msec2017-2781.

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The magnetic abrasive finishing (MAF) process is well known because of its high efficiency in yielding a mirror gloss finish zone. Clarification of the high efficiency machining mechanism has indicated that this high efficiency is obtained by iron particle cutting and the simultaneous polishing of alumina abrasives. This process yields unevenness, which is often evident on the workpiece surface. In a previous report, we compared magnetic polishing brushes consisting of iron powder paste (commercial paste) or steel balls (uniform size), and found that a large variation was generated when the magnetic polishing brush approached the workpiece surface in both cases. In this paper, we make slight changes to the steel-ball shape, obtaining saddle and barrel-shaped iron particles via stamping processing. The aim is to observe the control factor of the pressing force for these three different iron particle shapes and for different particle numbers, using a force sensor and a high-speed camera. The relationship between the iron particle shape, the iron particle number and the pressing force control is also explored in an attempt to discuss the mechanism behind the iron particle shape effect on the frictional force generation between the iron particles. It is found that the force variation can be reduced by adjusting the particle shape and number, which effectively reduces the damage caused when the brush approaches the workpiece surface.
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Bucko, Samuel, Martin Krchnak, Roman Cimbala, Lukas Kruzelak, and Jan Zbojovsky. "Abrasive properties of transformer oil-based magnetic nanofluid." In 2018 19th International Scientific Conference on Electric Power Engineering (EPE). IEEE, 2018. http://dx.doi.org/10.1109/epe.2018.8396038.

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Ross, Daniel, Yanming Wang, Hadyan Ramadhan, and Hitomi Yamaguchi. "Polishing Characteristics of Transparent Polycrystalline YAG Ceramics Using Magnetic Field-Assisted Finishing." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8766.

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Transparent polycrystalline yttrium aluminum garnet (YAG) ceramics have garnered an increased level of interest for high-power laser applications due to their ability to be manufactured in large sizes, and doped in relatively substantial concentrations when compared to traditional single-crystalline gain media. However, surface characteristics have a direct effect on the lasing ability of these materials, and a lack of a fundamental understanding of the polishing mechanisms of these ceramics remains a challenge for their utilization. The aim of this paper is to study the polishing characteristics of YAG ceramics using magnetic field-assisted finishing (MAF). An experimental setup was developed, through the refinement of the MAF process, for YAG ceramic workpieces. Using this equipment with diamond abrasives, the YAG ceramic surfaces were polished to sub-nanometer scale. Polishing trials with fine diamond abrasive and colloidal silica were then performed on this sub-nanometer surface and the material removal mechanisms were analyzed. Polishing with 0–0.1 μm diameter diamond abrasive caused increasing roughness with polishing time due to the continuous cycle of relatively substantial chipping followed by minor smoothing. Polishing with colloidal silica caused valleys to widen with increased polishing time and the grain structure of the ceramic influenced the material removal.
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Singh, D. K., V. K. Jain, V. Raghuram, and R. Komanduri. "Analysis of Surface Roughness and Surface Texture Generated by Pulsating Flexible Magnetic Abrasive Brush (P-FMAB)." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63134.

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The direct current magnetic abrasive finishing (DC-MAF) process provides practically no stirring effect on the static flexible magnetic abrasive brush (FMAB) formed by the magnetic field in the working gap. Absence of stirring leads to dullness of abrasive cutting edges in contact with the workpiece which results in a low finishing rate. To overcome this problem, the FMAB has been made pulsating using a DC-pulsed power supply, and the process is hence termed pulsed current-magnetic abrasive finishing (PC-MAF). The surface roughness was found to improve remarkably by the formation and destruction of the FMAB during the on and off time respectively, under selected pulsed parameters. The surface texture indicates that the process consists of microscratches generated on the finished surface. Further, the surface appears to have been generated by the removal of material from peaks of the workpiece surface by rotation as well as lateral movement of the FMAB.
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Jianqiang, Chen, Sun Zhe, Yang Guojun, Liu Xingnan, and Shi Zhengang. "Research on Rolling-Sliding Integrated Auxiliary Bearing and its Application in High Temperature Reactor." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-67544.

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The active magnetic bearings (AMB), with the advantages of no friction, no abrasion, no lubrication and active control, is used in the primary helium circulator for high-temperature gas-cooled reactor (HTR). But the magnetic bearing is a complex system, which contains sensor, controller, power amplifier circuit and actuators. Any part of failure is likely to make high-speed rotor off balanced position and fell in the inner ring of the bearing, causing huge impact and fiction heat that may damage the magnetic bearing. Therefore, it is necessary to bring the auxiliary bearing in the magnetic bearing to protect and temporarily support the high-speed rotor. The auxiliary bearings are mainly divided into two categories: rolling bearings and plain bearings. Generally speaking, for rolling bearings, the force of friction is smaller and the heat caused by it is lower during the touchdown. However, it needs to be detected online to ensure that it can work well in emergencies, and the rolling bearings has a smaller load capacity because of the point contact between the ball and the ring. Compared with the rolling bearings, the structure of plain bearings is simple and durable. With a larger load capacity and the advantage of non-contact detection, the plain bearing is gradually becoming a research hot-spot in the field of the auxiliary bearing. But the great friction and inevitable heat are also cannot be ignored. In High temperature gas-cooled reactor demonstration power station (HTR_PM), the work load of helium main fan is very large, once the support of electromagnetic bearing is out of work, the auxiliary bearing need to suffer from a very large drop impact load, which is accompanied by a huge friction fever. Therefore, it is important to develop a rolling-sliding integrated bearing which can bear heavy load and have little friction, combined with the advantages of plain bearings and rolling bearings. And that is an important direction of the development for the main helium pan in high temperature gas-cooled reactor nuclear power plant. This paper establish a simulation model for a horizontal rotor and rolling-sliding integrated auxiliary bearing system. In the case of synchronous rotation of the inner ring with the rotor, the speed of the outer race of the bearing is determined. and based on the main helium fan in HTR-PM, using the finite element analysis software LS-Dyna, the rolling-sliding integrated auxiliary bearing is proposed and the impact force and the MISES stress nephogram when the peak inflation occurred during the first impact and the axial axes displacement curve during rotor drop in the auxiliary bearing are preliminarily simulated in this paper., then certain theoretical reference is provided for the design and engineering application of the rolling-sliding integrated auxiliary bearing.
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