Une pure merveille !
Un roman d'une grande beauté, drôle, fin, extrêmement lumineux sur des sujets difficiles : la perte de
l'être aimé, la dureté de la vie et la tristesse qu'on barricade parfois... Elise franco-japonaise,
orpheline de sa maman veut poser LA question à son père et elle en trouvera le courage au fil des pages,
grâce au retour de sa grand-mère du japon, de sa rencontre avec son extravagante amie Stella..
Ensemble il ne diront plus Sayonara mais Mata Ne !
The properties of some inorganic materials (semiconductors, and high-Tc superconductors, in particular) are strongly dependent on the composition of the...
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Livré chez vous entre le 28 septembre et le 4 octobre
En librairie
Résumé
The properties of some inorganic materials (semiconductors, and high-Tc superconductors, in particular) are strongly dependent on the composition of the crystal, whereas the homogeneity range, or the maximum non-stoichiometry of the solid, is very often less than the precision of the conventional analytical methods (roughly 0. 1 at.%). Consequently, new and more sensitive methods must be developed to probe the non-stoichiometry. For many types of materials vapor pressure scanning can be such a technique. This method was developed by the author, and it is a way of determining the composition of the solid, X, at the measured temperature, T, and pressure, P, with an unparalleled accuracy of up to 10(-4) at.% at high temperatures (up to 1200°C). Along with the results obtained by the author and his colleagues, P-T-X diagrams of other important materials (e.g. III-V, IV-VI semiconductors) are also discussed. The exposition is in two parts. In the first one a geometrical thermodynamic approach is used for a step-by-step presentation of P-T-X diagrams of binary systems. The types of diagrams most frequently encountered in materials science are discussed. The composition of crystals grown from various matrices is presented in conjunction with the P-T-X diagrams. In the second part examples of systems which have been recently experimentally studied are given. Throughout the book emphasis is placed on the Phase Rule argument of universal solubility. This is where this book differs from the other (quite scarce) texts on P-T-X phase diagrams. This book will be of interest to the wide community of materials scientists, and to university lecturers and their students.