Books on the topic 'Composite phase change material'

The monograph presents mathematical methods and a set of mathematical models describing, within the framework of phenomenological theory, phase transitions in 0D-. 1D-, 2D-, 3D-dimensional ferroelectrics, ferroelastics, ferromagnets and their static and dynamic physical properties near the phase transition point. The influence of the parameters characterizing the ferroic sample and its interaction with the environment on the features of the phase transition, phase transition temperature shift, heat capacity, generalized susceptibilities is analyzed. Mathematical models of multilayer thin-film structures and composite materials, where one of the components is a ferroic nanoparticle, are considered. In general, modern ideas about dimensional effects in ferroelectrics, ferroelastics, ferromagnets and mechanisms of purposeful influence on their properties are sufficiently fully covered. It is intended for researchers, students and postgraduates of physical specialties of universities interested in fundamental problems of formation of physical properties of low-dimensional materials. Research engineers, developers of new materials can use the presented material as a scientific and methodological basis to support the development of optimal solutions for their creation.

This article focuses on left-handed metamaterials (LHMs). It begins with a discussion of negative-permeability metamaterials, with particular emphasis on split-ring resonators (SRRs) and SRRr arrays and how magnetic permeability influences the response of materials to the incident magnetic field. It then considers the transmission spectra of SRR, LHM and a composite metamaterial as well as the reflection characteristics of a one-dimensional double-negative material. It also examines the effect of disorder on the transmission and reflection properties of ordered left-handed materials, along with the negative refraction, negative phase velocity, and subwavelength imaging and resolution of LHMs. The article concludes with an analysis of planar negative-index metamaterials.

Malleable Anatomies examines the early stages of the practice of anatomical modelling. It investigates the ‘mania’ for anatomical displays that swept the Italian peninsula in the mid-eighteenth century, and traces the fashioning of anatomical models as important social, cultural, and political as well as medical tools. Anatomical models offered special insights into the inner body. Being coloured, soft, and malleable, they fostered anatomical knowledge in delightful ways. But how did anatomical models inscribe and mediate bodily knowledge? How did they change the way in which anatomical knowledge was created and communicated? And how did they affect the lives of those involved in their production, display, viewing, and handling? Examining the circumstances surrounding the making and early viewing of anatomical displays in Bologna, Naples, and Palermo, Malleable Anatomies addresses these questions by reconstructing how anatomical modelling developed at the intersection of medical knowledge, religious ritual, antiquarian and artistic cultures, and Grand Tour display. While doing so, it investigates the development of anatomical modelling in the context of the diverse visual and material practices that characterized the representation and display of the body. Drawing attention to the artisanal dimension of anatomical practice, and the role of women as both makers and users, it considers how anatomical models lay at the centre of a composite world of social interactions that led to the fashioning of modellers as anatomical celebrities. Moreover, it examines how anatomical displays transformed the proverbially gruesome practice of anatomy into an enthralling experience that engaged audiences’ senses and affects.

This text presents a concise and thorough introduction to the main concepts and practical applications of thermodynamics and kinetics in materials science. It is designed with two types of uses in mind: firstly for one or two semester university course for mid- to - upper level undergraduate or first year graduate students in a materials-science-oriented discipline and secondly for individuals who want to study the materials on their own. The following major topics are discussed: basic laws of classical and irreversible thermodynamics, phase equilibria, theory of solutions, chemical reaction thermodynamics and kinetics, surface phenomena, stressed systems, diffusion and statistical thermodynamics. A large number of example problems with detailed solutions are included as well as accompanying computer-based self-tests, consisting of over 400 questions and 2000 answers with hints for students. Computer-based laboratories are provided, in which a laboratory problem is posed and the experiment described. The student can "perform" the experiments and change the laboratory conditions to obtain the data required for meeting the laboratory objective. Each "laboratory" is augmented with background material to aid analysis of the experimental results.

This short book describes ten fundamental concepts – big ideas – of materials science. Some of them come from mainstream physics and chemistry, including thermodynamic stability and phase diagrams, symmetry, and quantum behaviour. Others are about restless atomic motion and thermal fluctuations, defects in crystalline materials as the agents of change in materials, nanoscience and nanotechnology, materials design and materials discovery, metamaterials, and biological matter as a material. A cornerstone of materials science is the idea that materials are complex systems that interact with their environments and display the emergence of new science from the collective behaviour of atoms and defects. Great attention is paid to the clarity of explanations using only high school algebra and quoting the occasional useful formula. Exceptionally, elementary calculus is used in the chapter on metamaterials. It is not a text-book, but it offers undergraduates and their teachers a unique overview and insight into materials science. It may also help graduates of other subjects to decide whether to study materials science at postgraduate level.

This text reviews fundametals and incorporates key themes of quantum physics. One theme contrasts boson condensation and fermion exclusivity. Bose–Einstein condensation is basic to superconductivity, superfluidity and gaseous BEC. Fermion exclusivity leads to compact stars and to atomic structure, and thence to the band structure of metals and semiconductors with applications in material science, modern optics and electronics. A second theme is that a wavefunction at a point, and in particular its phase is unique (ignoring a global phase change). If there are symmetries, conservation laws follow and quantum states which are eigenfunctions of the conserved quantities. By contrast with no particular symmetry topological effects occur such as the Bohm–Aharonov effect: also stable vortex formation in superfluids, superconductors and BEC, all these having quantized circulation of some sort. The quantum Hall effect and quantum spin Hall effect are ab initio topological. A third theme is entanglement: a feature that distinguishes the quantum world from the classical world. This property led Einstein, Podolsky and Rosen to the view that quantum mechanics is an incomplete physical theory. Bell proposed the way that any underlying local hidden variable theory could be, and was experimentally rejected. Powerful tools in quantum optics, including near-term secure communications, rely on entanglement. It was exploited in the the measurement of CP violation in the decay of beauty mesons. A fourth theme is the limitations on measurement precision set by quantum mechanics. These can be circumvented by quantum non-demolition techniques and by squeezing phase space so that the uncertainty is moved to a variable conjugate to that being measured. The boundaries of precision are explored in the measurement of g-2 for the electron, and in the detection of gravitational waves by LIGO; the latter achievement has opened a new window on the Universe. The fifth and last theme is quantum field theory. This is based on local conservation of charges. It reaches its most impressive form in the quantum gauge theories of the strong, electromagnetic and weak interactions, culminating in the discovery of the Higgs. Where particle physics has particles condensed matter has a galaxy of pseudoparticles that exist only in matter and are always in some sense special to particular states of matter. Emergent phenomena in matter are successfully modelled and analysed using quasiparticles and quantum theory. Lessons learned in that way on spontaneous symmetry breaking in superconductivity were the key to constructing a consistent quantum gauge theory of electroweak processes in particle physics.

What Happened to governance in Kashmir? studies the state of Jammu and Kashmir from the perspective of an ‘exceptional state’ rather than a ‘normal state’, a periphery on the margins of the centre, and thus shifts the focus from the central grid to the local arena. It contains a mass of information on what successive governments did to manage the conflicted state of Jammu and Kashmir. It identifies the various issues and problems the state has been confronted with since the transfer of power to ‘popular’ government in 1948 to 1989. The book makes a critical study of the engagement of Indian state and its clientele governments and patronage democracies with political instability to create ‘order’ in ‘durable disorder’. With having examined the different political, military, legal, economic, social, and cultural strategies, instruments and tactics employed by the state at different times to suit changing environments, this is the first work on post 1947 Kashmir which brings together many capital dimensions of state, politics, and governance in Kashmir under one cover. While critically delineating the doings of the governments, the book does not only provide flesh and blood to some existing narratives, it also modifies and even refutes some of the long held assumptions on the basis of hitherto unexamined evidence. All in all, the book illuminates the reader about the policies of Indian state towards Kashmir and the extent the successive governments have succeeded in winning the emotional integration of Kashmiris with the Indian Union. As Sheikh Abdullah was a central figure of Kashmir politics and governance, the readers will find a refreshingly new light on his governance when he was in power, and a most influential agency to mould the public opinion when he was out of state power. Similar revealing information on the other governments are documented for the first time. Having studied each government in its own right, we find the governance characterized by change in continuity. Indeed, governance in Kashmir does not constitute one single development. In essence it is a diachronic assemblage, a composite result of different systems each with its own internal or imposed coherence moving at different speeds—some are stable, some move slowly, and some wear themselves out more quickly depending on various forces and factors. What Happened to Governance in Kashmir? is a telling tale on the state of governance in Kashmir; the policies and strategies adopted by Indian state and the successive patronage governments to grapple with the multifarious problems of the state. Kashmir is an ailing state. It is the victim of colonialism and partition, which subverted its geographical centrality with serious economic implications besides making it a permanent conflict state causing immense human and material loss. Besides being claimed by India, Pakistan, and Kashmiris, it is also a rainbow state very difficult to manage with various ethno-regional and sub-regional nationalities at cross-purposes. Added to this, it is a dependent state. This book situates governance in its total milieu and examines the governance in the framework of challenge and response continuum. It unfolds how in a conflict state like Kashmir democracy and governance is always guided and controlled. This is the first comprehensive book on the post 1947 governance in Kashmir.