材料期刊网

Damping Behaviour and Mechanism of Graphite Particulate Reinforced Metal Matrix Composites

Yongchang LIU , Gencang YANG and Yili LU(State Key Lab. of Solidification Processing , Northwestern Polytechnic University , Xi'an 710072 , China)Zhengang ZHU(Lab. of Internal Friction and Defects in Solids , Institute of Solid State Physics , Chinese Academy o

材料科学技术（英文）

The effect of graphite particulate reinforcement on the resultant damping behaviour of ZA27metal matrix composites (MMCs) has been investigated in an effort to develop a new functional material. The MMCs were processed by a spray atomization and deposition technique. The damping capacity, as well as...

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Controversy about the Origin of the Grain Boundary Internal Friction Peak and Its Clarification

T.S.Ke (Tingsui GE)(Lab. of Internal Friction and Defects in Solids , Institute of Solid State Physics , Chinese Academy of Sciences , Hefei 230031 , China)

材料科学技术（英文）

In the seventies some scientific workers from France and ltaly suggested that the grain boundary internal friction peak (named the Ke peak in the literature) widely accepted as a grain bound ary process, is originated from the motion of lattice dislocations. Since this problem is one of fundamental ...

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SUPERPLASTICITY AND SOLID STATE BONDING OF TITANIUM ALLOYS

R. Ya. Lutfullin , O.A. Kaibyshev , R.V. Safiullin , O.R. Valiakhmetov and M.H. Mukhametrahimov Institute for Metals Superplasticity Problems , Russian Academy of Sciences , Ufa 450001 , Russia

金属学报(英文版)

Experimental results related to solid state weldability of superplastic titanium alloys are presented. A correlation between superplastic flow and enhanced solid state weldabi...

关键词: superplasticity , null , null

Solid state reaction of Mg with Ni under high pressure

High Pressure Research

Solid state reaction of Mg with Ni was processed under static high pressure and nanocrystalline Mg2Ni was obtained. An unknown phase was also formed at lower temperature. The relation between the mean grain size of Mg2Ni and the synthetiz...

关键词: solid state reaction;high pressure;nanocrystalline;Mg2Ni;mean grain;size;unknown phase;ab(2)-type intermetallic compounds;crystal-structure

Lattice instability in the solid-state amorphization of Fe(Al) solid solutions by mechanical alloying

Physical Review B

Metastable Fe100-xAlx alloys have been formed by ball milling of elemental Fe and Al powders: supersaturated body-centered-cubic solid solutions for x less than or equal to 70, and an amorphous phase for x > 70. Quantitative x-ray-diffraction measurements show that ...

关键词: to-glass transition;crystal;transformation

Solid-state and liquid-state interfacial reactions between Sn-based solders and single crystal Ag substrate

Journal of Alloys and Compounds

Growth kinetics and interfacial morphologies of the intermetallic compounds (IMCs) between single crystal Ag and Sn-4Ag, Sn-3Cu and Sn-37Pb solders were investigated by solid-state aging at 160 degrees C and liquid-state aging at 260 degr...

关键词: Ag single crystal substrate;Lead-free solder;Intermetallic compounds;(IMCs);Growth kinetics;Local cracks;lead-free solders;electroless ni(p) metallization;intermetallic;compound;cu-sn;joints;ni;bi;nanoindentation;microstructure;wt.percent

SOLID-STATE AMORPHIZATION REACTION IN POLYCRYSTALLINE NI AND AMORPHOUS SI MULTILAYER

Journal of Applied Physics

Interdiffusion-induced solid-state amorphization reaction (SSAR) in polycrystalline Ni/amorphous Si multilayers has been studied using an in situ x-ray diffraction technique together with transmission electron microscope observations, The amorphization reaction was fou...

关键词: x-ray-diffraction;thin-films;silicon

SOLID-STATE DISPLACEMENT REACTION OF FE AND CUO INDUCED BY MECHANICAL ALLOYING

Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing

We report on studies of solid state redox reactions induced by mechanical alloying (MA). The displacement reaction in the Fe-CuO system during MA may be completed by two steps: a rapid self-sustaining combustion reaction process, followed...

关键词: amorphous-alloys;powders

THE APPARENT VISCOSITY OF SEMI-SOLID AZ91D ALLOY AT STEADY STATE

Z.S. Zhen , W.M. Mao , S.J. Yan

金属学报(英文版)

The Rheological behavior of semi-solid AZ91D at steady state is studied using a Couettetype viscometer in the present paper. The results show that the apparent viscosity ofsemi-solid AZ91D at the steady

关键词: Rheological behavior , null , null , null , null

Facile Solid-State Synthesis Route to Metal Nitride Nanoparticles

Yinxiao DU , Ming LEI , Hui YANG

材料科学技术（英文）

By a facile and efficient solid-state reaction route using an organic reagent cyanamide (CN2H2) as a precursor with another one being metal oxides, we successfully synthesized seven technologically important metal nitrides including cubic VN, CrN, NbN, hexagonal GaN, A...

关键词: Nitride , null , null , null