Preparation of agglomerated powders for air plasma spraying MoSi2 coating
Preparation of agglomerated powders for air plasma spraying MoSi2 coating
复制标题
空气等离子喷涂MoSi2涂层用团聚粉末的制备
DOI：
10.1016/j.ceramint.2015.04.149
复制
发表时间：
2015-11
影响因子：
5.2
通讯作者：
Long-FeiLiu
中科院分区：
文献类型：
--
作者：
Jian-hui Yan;JIan-jian Xu;Rafi-ud-din;Yi Wang;Long-FeiLiu
通过喷雾干燥和随后的超细 MoSi2 粉末真空烧结制备了适合空气等离子喷涂的团聚 MoSi2 粉末。表观密度和流动性通过表观密度仪和霍尔流量计测量。通过 X 射线衍射和扫描电子显微镜分析了所制备的粉末和涂层的结构。结果表明所得粉末为球形且多孔。研究发现热处理降低了 MoSi2 颗粒的球形度和孔隙率。与喷雾干燥粉末相比，在 1300°C 下烧结 1 小时的团聚粉末的流动性和表观密度分别提高了 57.0% 和 46%。经受等离子火焰的烧结态MoSi2粉末的密度进一步增加。使用尺寸为 30-54 μm 的团聚粉末制备的喷涂涂层产生了以 MoSi2 为主相的网络结构 MoSi2 复合涂层。
The agglomerated MoSi2powders, ideal for air plasma spraying, were prepared by spray drying and subsequent vacuum sintering of ultrafine MoSi2powders. The apparent density and flowability were measured by an apparent density instrument and a hall flowmeter. The structure of as-prepared powders and coatings was analyzed by X-ray diffraction and scanning electron microscopy. The results indicated that resultant powders were spherical and porous. It was found that heat treatment had decreased the sphericity as well as the porosity of the MoSi2particles. The agglomerated powders, sintered at 1300 °C for 1 h, showed 57.0% and 46% more flowability and apparent density, respectively, compared to that of the spray dried powders. The as-sintered MoSi2powders subjected to the plasma flame exhibited a further increase in the density. The as-sprayed coating by using the agglomerated powders with a size of 30–54 μm yielded a network structural MoSi2composite coating with MoSi2as the major phase.
登录
查看更多内容
空气等离子喷涂钼基体二硅化钼涂层的制备及表征
影响因子：
6.7
作者：
Yi Wang;Dezhi Wang;Jianhui Yan
通讯作者：
Jianhui Yan
DOI：
10.1016/j.msea.2006.01.004
发表时间：
2006-04
影响因子：
6.4
作者：
A. Subramaniam;C. Koch;R. M. Cannon;M. Rühle
通讯作者：
A. Subramaniam;C. Koch;R. M. Cannon;M. Rühle
影响因子：
5.2
作者：
Y. Niu;Hongyan Wang;H. Li;Xuebin Zheng;C. Ding
通讯作者：
Y. Niu;Hongyan Wang;H. Li;Xuebin Zheng;C. Ding
团聚烧结粉末等离子喷涂TiB2-Ni涂层的显微组织和滑动磨损性能
影响因子：
3.1
作者：
Zhu, Hong-Bin;Li, Hui;Yang, Hai-Xin;Li, Zhuo-Xin
通讯作者：
Li, Zhuo-Xin
影响因子：
5.4
作者：
G. Reisel;B. Wielage;S. Steinhäuser;I. Morgenthal;R. Scholl
通讯作者：
G. Reisel;B. Wielage;S. Steinhäuser;I. Morgenthal;R. Scholl