Crystallization kinetics of Cu3Ti2 forming from Cu60Ti40 glass
摘要:
Amorphous to crystalline transformation in Cu60Ti40 alloy has been studied under conditions of constant heating rate experiments, using XRD and DSC. In the high temperature XRD experiment, the transformation has been monitored continuously as the integrated X-ray intensity corresponding to a chosen reflection from one of the two crystalline products forming at close by temperatures. Differentiation of the curve thus obtained gives the transformation rate curve which passes through a maximum, From the peak shift with heating rate, the activation energy for the formation of Cu3Ti2 crystalline phase has been obtained. The results have been compared with those obtained by DSC.
Enthalpies of formation of Ti-Cu intermetallic and amorphous phases
作者:C. Colinet、A. Pasturel、K.H.J. Buschow
DOI:10.1016/s0925-8388(96)02590-x
日期:1997.1
Abstract The enthalpies of formation of the various intermetallic and amorphous phases of the TiCu binary system were measured by solution calorimetry in molten aluminum. The experimental results were compared with the values predicted by Miedema's model.
Svatovskaya, L. B.; Sychev, M. M.; Ryabinina, G. A., Journal of applied chemistry of the USSR, 1981, vol. 54, p. 576 - 580
作者:Svatovskaya, L. B.、Sychev, M. M.、Ryabinina, G. A.、Korneeva, T. A.
DOI:——
日期:——
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作者:A. Adlaßnig、J. C. Schuster、R. Reicher、W. Smetana
DOI:10.1023/a:1004449328549
日期:——
Currently only glass bonding thick film conductor systems are commercially available for metallizing AIN-ceramic. The glass phase formed between metallization and ceramic impairs the high thermal conductivity of AIN. A new glass frit free metallization system has been developed utilizing the bonding mechanism of active brazing to provide the adhesion of metallization onto the ceramic. Aspects of paste preparation range from the derivation of the metallic powder to the selection of an appropriate printing vehicle which must decompose completely during the firing process under an inert atmosphere. The adhesion strength of the new paste system with the alternative bonding mechanism has been evaluated and contrasted with that of standard thick film pastes. (C) 1998 Kluwer Academic Publishers.