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Superplastic forming of Ti6Al4V alloy using ZrO2-TiO2 ceramic die with adjustable linear thermal expansion coefficient JIANG Shao-song(蒋少松), ZHANG Kai-feng(张凯峰) National Key Laboratory... of the ZrO2-TiO2 ceramic die. Key words: Ti6Al4V; superplastic forming; ceramic die; linear coefficient of thermal expansion 1 Introduction Ti6Al4V has a wide application in the fields of the aerospace......
Coefficient of thermal expansion of stressed thin films WANG Zheng-dao(王正道), JIANG Shao-qing(蒋少卿) Institute of Mechanics, School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China Received 10 April 2006; accepted 25 April 2006 Abstract: A new technique was proposed to determine the coefficient of thermal expansion (CTE) of thin films at low temperature......
dispersed in the composite and bonded to the matrix. In addition, the thermal expansion of the composites with various MWCNT contents (0%, 1% and 5%, mass fraction) were investigated. The coefficient... the microhardness of the composite. Table 1 Density and microhardness of composites (mass fraction, %) 3.5 Thermal expansion of MWCNT/Cu composite Fig.7 shows a thousandth linear change versus temperature plots......
PREPARATION OF HIGH THERMAL EXPANSION COEFFICIENT PORCELAINS FUSED TO METALS J.P.Yang1,J.Q.Wu1 (1.Dept. of Inorganic Materials, South China University of Technology, Guangzhou 510640, China... and 50%o of low fused temperature frit has an average TEC of 19.2× 10-6/° C from room temperature to 450°C, which is much higher than the common porcelains. Key words:thermal expansion coefficient......
. The negative thermal expansion coefficient of Nd2AlFe11Mn5 compound is found by X-ray diffraction in temperature range of 122-203 K. There exists an anisotropic and strong positive spontaneous... near Tc. For example, in Y2Al3Fe11Mn3 compound[11], the average thermal expansion coefficient is =?v/(v?T)≈-7.5?10-5/K in the temperature range 185-200 K. In this paper, the thermal expansion......
ZrW2O8, which show negative thermal expansion over a very broad temperature range (which is from 0.3 to 1 050 K)[3,4]. The discovery of the new materials with a negative coefficient of thermal..., in Y2Al3Fe11Mn3 compound[13], the average thermal expansion coefficient is =?V/(V?T)≈-7.5?10-5/K in the temperature range of 185-200 K. This makes these materials interesting from both a fundamental point......
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and the contents of Dy2O3, Al2O3, and SiO2 were studied respectively. Experimental results showed that Dy2O3 and Al2O3 had a positive effect on the coefficient of thermal expansion of glass, whereas, SiO2 had a negative effect. The coefficient of thermal expansion of glass showed an apparent linear relation to the contents of these three raw materials, from which an estimation model was built, to calculate......
bending strength and SiCp content is observed. Key words: SiCp/Cu composites; electronic packaging; thermal expansion coefficient; mechanical properties  ...; 1 Introduction Packaging materials should have low coefficient of thermal expansion (CTE), high thermal conductivity and high mechanical strength. With the rapid development......
. Key words: composites; coefficient of thermal expansion; dimensional stability; thermal cycles  ..., and their microstructure is studied. Meanwhile, their thermal expansion behavior and dimensional stability are investigated by coefficient of thermal expansion (CTE) measurement and thermal cycling testing......