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Decomposition behavior of titanium hydride treated by surface oxidation
Alternative TitleDecomposition behavior of titanium hydride treated by surface oxidation
Luo HongJie1; Lin Hao2; Chen PeiHong1; Yao GuangChun1
2015
Source PublicationRARE METALS
ISSN1001-0521
Volume34Issue:1Pages:28-33
AbstractTitanium hydride attracts more attention as foaming agent in the fabrication of cellular metal materials. In order to meet most aluminum casting alloy's melting properties, the heat treatment processes for TiH2 particles were investigated in a rotating device. In the present work, the most two important dynamic parameters, the treating temperature and oxidation interval, were taken under consideration. The decomposition behavior of titanium hydride was measured by differential scanning calorimetry (DSC) and the residual hydrogen content, morphologies and phase conversion were also characterized by hydrogen determinator, scanning electron microscopy (SEM), and X-ray diffractometer (XRD), respectively. The results show that the effect of temperature on the formation of oxidation film and decomposition behavior of TiH2 is more significant than that of oxidation time. The onset temperature and peak value of TiH2 decomposition shift from left to right through elevating temperature and extending time. Heat treatment process for TiH2 at 500 A degrees C between 1 and 5 h in air is favorable for preparing aluminum foam.
Other AbstractTitanium hydride attracts more attention as foaming agent in the fabrication of cellular metal materials.In order to meet most aluminum casting alloy’s melting properties, the heat treatment processes for TiH_2 particles were investigated in a rotating device. In the present work,the most two important dynamic parameters, the treating temperature and oxidation interval, were taken under consideration. The decomposition behavior of titanium hydride was measured by differential scanning calorimetry(DSC) and the residual hydrogen content, morphologies and phase conversion were also characterized by hydrogen determinator, scanning electron microscopy(SEM), and X-ray diffractometer(XRD), respectively. The results show that the effect of temperature on the formation of oxidation film and decomposition behavior of TiH_2 is more significant than that of oxidation time. The onset temperature and peak value of TiH_2 decomposition shift from left to right through elevating temperature and extending time.Heat treatment process for TiH_2 at 500 °C between 1 and5 h in air is favorable for preparing aluminum foam.
KeywordALUMINUM FOAM GAS-RELEASE X-RAY AGENT Titanium hydride Oxidation treatment Thermal decomposition Aluminum foam
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China] ; [Science and Technology Department of Liaoning Province of China]
CSCD IDCSCD:5354392
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/154694
Collection中国科学院金属研究所
Affiliation1.上海市地震局
2.中国科学院金属研究所
Recommended Citation
GB/T 7714
Luo HongJie,Lin Hao,Chen PeiHong,et al. Decomposition behavior of titanium hydride treated by surface oxidation[J]. RARE METALS,2015,34(1):28-33.
APA Luo HongJie,Lin Hao,Chen PeiHong,&Yao GuangChun.(2015).Decomposition behavior of titanium hydride treated by surface oxidation.RARE METALS,34(1),28-33.
MLA Luo HongJie,et al."Decomposition behavior of titanium hydride treated by surface oxidation".RARE METALS 34.1(2015):28-33.
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