中国激光, 2003, 30 (11): 1053, 网络出版: 2006-06-27   

ZnO纳米粉吸光特性及其应用实例

Optical Absorbability of ZnO Nanopowders and Application in Surface-hardening of Materials
作者单位
1 武汉科技大学高温陶瓷与耐火材料湖北省重点实验室和纳米材料中心,湖北,武汉,430081
2 华中科技大学塑性成型及模具技术国家重点实验室,湖北,武汉,430074
摘要
用热物理法制备ZnO纳米晶须和纳米粒子,该晶须从中心向空间三维拓展出四根针,针的直径由根部向顶部逐渐变小,使ZnO纳米晶须在很宽波段对光吸收。利用此特殊结构制备出纳米黑化吸收剂,并应用于激光表面强化。与传统黑化剂的效果相比,其5Cr5MoSiV钢淬硬层的显微硬度达到792Hv,增幅为6%;淬硬层的最大深度为0.60 mm,上升的幅度为20%;激光淬火功率下降了300 W,节能高达30%。
Abstract
ZnO nanopowders were synthesized by thermal physical method, which present two types of morphology, such as nanoparticles and nanowhiskers. The produced tetrapod nanowhiskers usually show four needle-like feet that originate from the center of the polyhedron. The nanowhiskers display a fantastic optical property of absorbing light, which is totally different from the nanoparticles. The nanowhiskers can enhance the absorptive ability of coating for CO 2 laser beam. The results show that the hardness and depth on the laser-hardened surface of steel 5Cr5MoSiV are improved dramatically. Compared with laser-hardening by using absorbent without the nanowhiskers, the hardening only demanded an 800 W output for CO 2 laser, saving the power as 30%.
参考文献

[1] Charles M. Lieber, Le Xington, Peidong Yang et al.. Metal Oxide Nanorods [P]. United States Patent 5897945, Application No.606892, April 27, 1999

[2] . W. Yuan, S. G. Song, R. F. Yan et al.. Formation of ZnO/metal composites by rapid oxidation of Zn metals[J]. J. of Mater. Sci., 1999, 34(6): 1293-1300.

[3] . . Unique uses of nanometer ZnO[J]. New Chemical Materials (化工新型材料), 2000, 27(3): 14-16.

[4] . Hingorani, V. Pillai, P. Kumar et al.. Microemulsion mediated synthesis of zinc-oxide nanoparticles for varistor studies[J]. Materials Research Bulletin, 1993, 28(12): 1303-1310.

[5] Z. W. Zhou, W. M. Peng, S. Y. Ke et al.. Tetrapod-shaped ZnO whisker and its composites [J]. J. of Mater. Processing Technol., 1999, 89~90(5):415~418

[6] . The synthesis, characteristic and application of tetrapod ZnO whiskers[J]. Chemistry (化学通报), 1996, 111(1): 12-16.

[7] . Bahnemann, Claudius Kormann, Michael R. Hoffman. Preparation and characterization of quantum size zinc oxide: a detailed spectroscopic study[J]. J. Phys. Chem., 1987, 91(14): 3789-3798.

[8] . W. Zhou. The absorption behavior of tetrapod-shaped ZnO whiskers[J]. J. of Southwest Jiaotong University (西南交通大学学报), 1999, 7(2): 203-209.

[9] Li Zequn, Xu Xinglan, Tang Kangtai et al.. Investigation on the preparation of nanometer sized ZnO with special morpholgyand their UV-absorbing properties [J]. Guangzhou Chemistry (广州化学), 1998, (3):37~43 (in Chinese)

[10] . Wu, Changsheng Xie, Hui Xia et al.. The thermal physical formation of ZnO nanoparticles and their morphology[J]. J. of Crystal Growth, 2000, 217(3): 274-280.

[11] Hiroshi Iwanaga, Mitsabiro Fujii, Shin Takeuch. Inter-leg angles in tetrapod ZnO particles [J]. J. Of Crystal Growth, 1998, 183(1~2):190~195

[12] . . Optical absorption red shift of capped ZnFe2O4 nanoparticles[J]. Chem. Phys. Lett., 1998, 115(7): 535-536.

[13] . The "Blue Shift" and "Widezatin" in the infrared absorption spectra of nanometer-sized silicon nitride[J]. Journal of the Graduate School of the Chinese Academy of Science (中国科学院研究生院学报), 1993, 10(4): 355-359.

[14] . Wu, C. S. Xie. Condensation formation of Co-Fe nanoparticles and the related magnetic properties[J]. Materials Letters, 2003, 57: 1539-1543.

吴润, 谢长生, 王爱华, 从善海, 杨英歌, 蔡伟平. ZnO纳米粉吸光特性及其应用实例[J]. 中国激光, 2003, 30(11): 1053. 吴润, 谢长生, 王爱华, 从善海, 杨英歌, 蔡伟平. Optical Absorbability of ZnO Nanopowders and Application in Surface-hardening of Materials[J]. Chinese Journal of Lasers, 2003, 30(11): 1053.

本文已被 2 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

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!