Chinese Journal of Lasers B, 2002, 11 (1): 66, 网络出版: 2006-08-08  

Experimental Study on Igniting Self-propagating High-temperature Synthesis by Laser

Experimental Study on Igniting Self-propagating High-temperature Synthesis by Laser
作者单位
College of Material Science and Engineering of Huazhong University of Sci. & Tech., Wuhan 430074, China
摘要
Abstract
An applied range of self-propagating high-temperature synthesis (SHS) is extended under igniting by laser, but there is no study in detail on its ignition process. The ignition time of SHS by laser is studied in detail in this paper for searching igniting law. A laser beam produced by CO2 laser scans back and forth along a straight line on the surface of a sample, and an ignition time is measured under different testing conditions. The results show that the ignition time is the shortest at certain mixing time, the ignition time is longer with decreasing of the density and increasing of the sample density, and the ignition time becomes shorter when pre-heat temperature rises, but the ignition time has no relation with the area and the thickness of samples when the thickness is thicker, and it has no close relation with shield gas of N2.
参考文献

[1] Liang Shuqan, Zheng Zijiao. The synthesis of materials by self-propagating-combustion method. Journal of The Chinese Ceramic Society, 1993, 21(3):261~271 (in Chinese)

[2] Yan Xinyan, Sun Guoxiong, Zhang Shuge. Developments and application of SHS process. Materials for Mechanical Engineering, 1995, 19(5):1~5 (in Chinese)

[3] Yin Sheng, Lai Heyi. Development in self-propagating high-temperature synthesis (SHS). Powder Metallurgy Technology, 1992, 10(3):223~227 (in Chinese)

[4] Fu Zhengyi, Wang Weiming, Yuan Runzhang. Ignition process model and analysis of self-propagating high-temperature synthesis. Journal of The Chinese Ceramic Society, 1994, 22(5):447~452 (in Chinese)

[5] Duan Huiping, Yin Sheng, Lai Heyi. Reactive characteristics of multi-component thermit. Journal of University of Science and Technology Bejing, 1997, 19(1):109~116 (in Chinese)

[6] Zhao Kunyu, Zhu Xinkun, Zhang Jiaqi. Production TiB2 by self-propagating high-temperature synthesis. Powder Metallurgy Technology, 1997, 15(1):26~28 (in Chinese)

[7] Atong D., Clark D. E.. Microwave-induced combustion synthesis of TiC-Al2O3 composites. Ceram. Eng. and Sc. Proceedings, 1999, 20(3):111~118

[8] Xu Gengfu, Zhang Hanrui, Li Wenlan et al.. Microwave sintering of SHS-prepared β-sialon powders with Y2O3 as additive. Acta Electronica Sinica, 1998, 26(5):79~82

[9] A. P. Amosov, B. S. Seplyarskii, K. Yu. Voronin et al.. SHS mixture ignition at adiabatic. Int. J. of SHS, 1994, 3(3):253~260

[10] Keizo Kobayashi, Akihro Matsumoto, Kimihiro Ozaki et al.. Pulsed current sintering of mechanically alloyed Ni-Ti powder. J. Japan Inst. Material, 1999, 63(9):1161~1164 (in Japanese)

[11] A. G. Makarenko, A. L. Petrov, I. V. Shishkovsky. Direct SLS of powder compositions used for super high-temperature synthesis. In 8th Inter. Symp. ‘Solid Free-Form Fabrication’, Austin, Texas, USA., August, 11~13, 1997

[12] V. M. Filatov, YU. S. Naiborodenko. Ignition and development of a chemical reaction of titanium and carbon under shock loading. Int. J. of SHS, 1992, 1(3):343~347

[13] A. A. Zhukov, J. Dutta Ma Jumdar, I. Manna. Surface treatment by laser-melting induced self-propagating high-temperature synthesis. Journal of Material Science Letters, 1995, 14(11):828~829

[14] Geng Jianfen, Li Hailin, Wu Dongdi. Structures and property analysis of ceramic coating produced by SHS RFA process. Journal of East China University of Science and Technology, 1997, 23(2):228~231

[15] V. I. Itin,V. N. Hachin. Izvestia Vuzon. Fizika. Structure and properties of NiTi materials obtained with use of self-propagated high-temperature synthesis. Izvestia vuzov, 1997, 2:117~120 (in Russian)

[16] Gureev D. M., Petrov A. L., Shishkovsky I. V.. Formation of intermetallic phases under laser sintering of powdered SHS compositions. In 6th International Conference on Industrial Lasers and Laser Applications, Shatura, RUS, Jun 27~ 29, 1998. 273~242

CHEN Senchang, SHI Yusheng, HUANG Shuhuai. Experimental Study on Igniting Self-propagating High-temperature Synthesis by Laser[J]. Chinese Journal of Lasers B, 2002, 11(1): 66. CHEN Senchang, SHI Yusheng, HUANG Shuhuai. Experimental Study on Igniting Self-propagating High-temperature Synthesis by Laser[J]. 中国激光(英文版), 2002, 11(1): 66.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!