Combustion Synthesis of Advanced Materials (Chemistry by B. B. Khina PDF

By B. B. Khina

ISBN-10: 1608769771

ISBN-13: 9781608769773

ISBN-10: 1613242549

ISBN-13: 9781613242544

The objective of this ebook is to explain uncomplicated methods to modelling non-isothermal interplay kinetics in the course of CS of complex fabrics and display the present controversies and obvious contradictions among various theories, on one hand, and among thought and experimental info, however, and to increase standards for a transition from conventional solid-state diffusion-controlled section formation kinetics (a 'slow', quasi-equilibrium interplay pathway) to non-equilibrium, 'fast' dissolution-precipitation path.

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Additional info for Combustion Synthesis of Advanced Materials (Chemistry Research and Applications Series)

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8 m/s, was studied by in situ time-resolved synchrotron X-ray microdiffraction (with a 60 μm diameter incident X-ray beam) using an extremely fast pixel array detector. The thickness ratio of reactants corresponded to the stoichiometry of Ni2Al3. It has been revealed that NiAl appears as the first and only product of interaction between solid Ni and molten Al in the SHS wave where the heating rate was ~106 K [168]. e. during cooling, due to the peritectic reaction at a temperature below its melting point.

25) are formulated at interfaces Ti(melt)/TiC (r=R1) and C/TiC (r=R0) taking into account that here R0=R0(t) and cC + cTi =1 ( c021 − c10 ) dR 1 dt = − D C[T(t)] , ∂c C ∂r (1 − c023 ) R1(t) dR 0 dt = D Ti [T(t)] . 26) R 0(t) The initial conditions are R0(t=0) = R1(t=0) = R00. 1), r is the radial coordinate and R00 is the initial position of the C/Ti(melt) interface at which a thin TiC layer originates at t=0. 28) 30 B. B. 27) is reduced to an isothermal (linear) case which has an analytical solution [118] for the displacement of phase boundaries Ti/TiC (h) and C/TiC (δ): h(τC) = R1(τC) − R00 = βC τC1/2, δ(τTi) = R0(τTi) − R00 = βTi τTi1/2.

1). According to the Gibbs phase rule, in a binary system the contact of a solid phase layer (here pure nickel or Ni-base solid solution) with a two-phase region (here solid NiAl particles dispersed in Al-base melt at T

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Combustion Synthesis of Advanced Materials (Chemistry Research and Applications Series) by B. B. Khina


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