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high thermal conductivity and low coefficient of thermal expansion(CTE) are important.They were characterized by the microstructure and thermal properties as a function of boron content,which is used...Effects of boron on the microstructure and thermal properties of Cu/diamond composites prepared by pressure infiltrationYe-ming Fan1),Hong Guo1),Jun Xu1),Ke Chu1),Xue-xin Zhu1),and Cheng-chang Jia2)1......
Study on Processing Conditions of Aluminum Matrix Composites Reinforced with Boron Carbide Particles YI XiaoSu1,Fu Xueying2,XI Huizhi2,Zhang Hong1 (1.National Key Laboratory of Advanced Composites,Beijing Institute of Aeronautical Materials,Beijing 100095,China;2.Material Department,Harbin Engineering University,Harbin 150001,China) Abstract:Different pre-heating of boron carbide particles......
High-pressure Sintering of Boron Carbide-Titanium Diboride Composites and Its Densification Mechanism高建成,WANG Dangqiang,LEI Liwen,张帆,ZHANG Jinyong,FU ZhengyiState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology摘 要:A high-pressure hot-pressing process was applied to densify a commercial boron......
NON-EQUILIBRIUM SOLUTE SEGREGATION TO AUSTENITIC GRAIN BOUNDARY IN FERRUM-NICKLE ALLOY D.Y.Yu1,P.Wu1,X.L.He1 (1.Department of Material Physics, University of Science & Technology Beijing, Beijing 100083, China) Abstract:The development of non-equilibrium segregation of boron at grain boundaries in Fe-40%Ni alloy during continuous cooling process was experimentally observed with boronParticle......
from commercial AZ91D alloy, RE and Al-10Sr (mass fraction, %) master alloy. RE was added in form of cerium-rich misch metal (Ce 50.65%, La 36.52%, Nd 6.38% and Pr 4.78%, mass fraction). AZ91D ingot... Effects of RE and Sr additions on dendrite growth and phase precipitation in AZ91D magnesium alloy ZHOU Ji-xue(周吉学), WANG Jie(王 杰), WANG Jing(王 晶), YANG Yuan-sheng(杨院生) Institute of Metal......
EFFECT OF CARBON AND BORON ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A SINGLE CRYSTAL SUPERALLOY RR 2072 Y.S.Yoo1,C.Y.Jo1,J.H.lee2,D.H.Ye2,D.H.Kim1 (1.High Temperature Materials Laboratory...:Carbon and boron have been considered to strengthen grain boundaries that might form during single crystal casting.In this study the effect of boron on solidification behavior and creep properties......
that the as-deposited boron-rich films are primarily amorphous structure and possess a dramatic high hardness up to 39 GPa with 99.03 at.% boron. Obviously, it has exceeded the hardness value of 32 GPa...Influence of boron contents on properties of AlMgB films prepared by RF magnetron sputteringQU Wenchao a , WU Aimin a , WU Zhanling b , BAI Yizhen b , and JIANG Xin a, b, c a School of Materials......
of microcrack and improving the service life of the forming parts. Key words: high temperature deformation; superplasticity; creep; deformation energy; Mg-Li-Al-Y alloy 1 Introduction High... information is available on the high temperature energy model in Mg-Li alloy. It is necessary, therefore, to investigate the variation in deformation energy and to obtain the distribution of deformation......
/metal bonding. And it has attracted extensive attention[3-5]. Amorphous alloy, a material at unsteady state, can boost atomic diffusion and surface reaction during the high temperature brazing process... avoids formation of brittle compounds and improve the joint strength. Furthermore, amorphous foils can solve the problem of machining of brittle brazing alloy. In this work, high temperature active Ti......
prism pattern film was machined by using the high precision lathe. The machined patterns on the roll master were 50, 45, 40, 35, 30, 25, 20, 15, 10 and 5 μm in the pitch with 25.0, 22.5, 20.0, 17.5... by SEM and microscope. Key words: high precision lathe; diamond tool; electroplated roll master by copper; optical film; complex prism patterns; light interference-phenomenon ......
