Formation of boron carbide coating by electromagnetically accelerated plasma spraying

被引：17

作者：

Kitamura, J

Usuba, S

Kakudate, Y

Yokoi, H

Yamamoto, K

Tanaka, A

Fujiwara, S

机构：

[1] AIST, Japan Fine Ceram Ctr, Joint Res Consortium FCT, Tsukuba, Ibaraki 3058565, Japan

[2] Natl Inst Adv Ind Sci & Technol, AIST, Tsukuba, Ibaraki 3058565, Japan

来源：

SURFACE & COATINGS TECHNOLOGY | 2003年 / 169卷

关键词：

plasma spraying; boron carbides; crystalline; X-ray diffraction; pulsed; electromagnetic force;

D O I：

10.1016/S0257-8972(03)00128-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Boron carbide (B4C) coating formation is investigated using an electromagnetically accelerated plasma spraying, which can generate a dense and a high velocity plasma jet of 1 MPa and 2.0-2.5 km/s by applying a pulsed high-current are-discharge to accelerate and heat powders. Highly crystalline B,C coatings with roughened coating-substrate interfaces were formed on mirror-polished stainless (SUS304) substrates without a binder material. The density and uniformity of the coating are improved by changing the source powder size from 30 to 10 mum, where the estimated porosity is decreased from 9 to 4%. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：324 / 327

页数：4

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