Effect of Diffusion Heat Treatment on Thickness of Cold-Rolled Cu/Al Composite Laminate Interface

2013 ◽  
Vol 310 ◽  
pp. 112-116 ◽  
Author(s):  
Xiao Guang Yuan ◽  
Lin Lv ◽  
Hong Jun Huang ◽  
Xiao Jiao Zuo ◽  
Huan Liu

The experiment has taken composite algorithm of cold rolling to prepare copper and aluminum composite laminate, studied the influence of diffusion heat treatment on the interface of copper and aluminum composite laminate. After Analyzed the relationship between the thickness of diffusion layer and diffusion heat treatment parameters, the experiments show that diffusion heat treatment temperature and diffusion time has influence on formation and size of the diffusion layer. At the same heat treatment temperature, the thickness of diffusion layer has parabolic relation with diffusion time with diffusion time extending and thickness of diffusion layer increasing. And the thickness of diffusion layer is increasing at the same heat treatment time. And the thickness of diffusion layer has exponential relation with diffusion heat treatment temperature. Quantitative analyzed the relationship between diffusion heat treatment parameters and diffusion layer thickness, and established a formula to describe the interface thickness and diffusion of heat treatment temperature and time.

2011 ◽  
Vol 464 ◽  
pp. 474-477
Author(s):  
Yan Hai Cheng ◽  
Zhen Cai Zhu ◽  
Zheng Tong Han

In the paper, different phosphorus content Ni-P coatings was prepared by electroless plating. The microstructural changes of electroless Ni-P coatings on both as-deposited condition and heat treatment were investigated by X-ray diffractometry (XRD). The relationship between microstructure of Ni-P coatings and phosphorus content and heat treatment temperature were discussed. This conclusion provided a good theoretical basis for Ni-P coating using for wear and corrosion resistances in the technology of MEMS.


2007 ◽  
Vol 539-543 ◽  
pp. 3514-3519
Author(s):  
Yi Hu ◽  
Feng Wei Wang ◽  
Hur Lon Lin

La3Ga5SiO14 (LGS) thin films were grown on (200)-textured MgO buffer layer, which was deposited on the silicon wafer, by sputtering at 600°C. These thin films were annealed and transformed form amorphous to the LGS crystalline phase with the heat treatment temperature higher than 1150°C. It was found that the films with LGS crystalline phase showed luminescent characterization whereas the LGS sintered solids did not. The emission peak of the films was found to be 438 nm under the excited light of λex=300nm. Effects of annealed temperature on the luminescent properties of the thin films are investigated. The relationship between the mechanism of luminescence and the crystalline structure of the LGS films are discussed.


2013 ◽  
Vol 27 (10) ◽  
pp. 1079-1083
Author(s):  
Zhao-Hui LIU ◽  
Gen-Liang HOU ◽  
Xun-Jia SU ◽  
Feng GUO ◽  
Zhou XIAO ◽  
...  

2009 ◽  
Vol 18 (12) ◽  
pp. 935-938
Author(s):  
H. Kobori ◽  
T. Asahi ◽  
Y. Yamasaki ◽  
A. Sugimura ◽  
T. Taniguchi ◽  
...  

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1264
Author(s):  
Teng-Chun Yang ◽  
Tung-Lin Wu ◽  
Chin-Hao Yeh

The influence of heat treatment on the physico-mechanical properties, water resistance, and creep behavior of moso bamboo (Phyllostachys pubescens) was determined in this study. The results revealed that the density, moisture content, and flexural properties showed negative relationships with the heat treatment temperature, while an improvement in the dimensional stability (anti-swelling efficiency and anti-water absorption efficiency) of heat-treated samples was observed during water absorption tests. Additionally, the creep master curves of the untreated and heat-treated samples were successfully constructed using the stepped isostress method (SSM) at a series of elevated stresses. Furthermore, the SSM-predicted creep compliance curves fit well with the 90-day full-scale experimental data. When the heat treatment temperature increased to 180 °C, the degradation ratio of the creep resistance (rd) significantly increased over all periods. However, the rd of the tested bamboo decreased as the heat treatment temperature increased up to 220 °C.


2013 ◽  
Vol 747-748 ◽  
pp. 497-501
Author(s):  
Na Liu ◽  
Zhou Li ◽  
Guo Qing Zhang ◽  
Hua Yuan ◽  
Wen Yong Xu ◽  
...  

Powder metallurgical TiAl alloy was fabricated by gas atomization powders, and the effect of heat treatment temperature on the microstructure evolution and room tensile properties of PM TiAl alloy was investigated. The uniform fine duplex microstructure was formed in PM TiAl based alloy after being heat treated at 1250/2h followed by furnace cooling (FC)+ 900/6h (FC). When the first step heat treatment temperature was improved to 1360/1h, the near lamellar microstructure was achieved. The ductility of the alloy after heat treatment improved markedly to 1.2% and 0.6%, but the tensile strength decreased to 570MPa and 600MPa compared to 655MPa of as-HIP TiAl alloy. Post heat treatment at the higher temperature in the alpha plus gamma field would regenerate thermally induced porosity (TIP).


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