Effect of temperature on deposition of LaPO4 coatings produced by ultrasonic-based coating process on steel substrates

被引：25

作者：

Romankov, S. ^{[1
]}

Komarov, S. V. ^{[2
]}

Hayashi, N. ^{[1
]}

Ueno, S. ^{[3
]}

Kaloshkin, S. ^{[4
]}

Kasai, E. ^{[1
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[2] Nippon Light Met Co, NRDC, Shizuoka 4213291, Japan

[3] Osaka Univ, Inst Sci & Ind Res, Suita, Osaka 565, Japan

[4] Moscow State Inst Steel & Alloys, Moscow 119049, Russia

来源：

SURFACE & COATINGS TECHNOLOGY | 2008年 / 202卷 / 17期

关键词：

coating; LaPO4; mechanical alloying; surface structure; microstructure;

D O I：

10.1016/j.surfcoat.2008.03.026

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

High-adhesion LaPO4 coatings were fabricated on steel substrates at temperatures of 150-400 degrees C after a 10 min treatment using an ultrasonic-based coating process. The principle underlying this process is the collision of ultrasonically accelerated hard balls with the substrate surface that is covered by loosely adhered LaPO4 particles. The repeated substrate-to-ball collisions flatten the precoated LaPO4 particles, bond them together and cold weld them to the substrate. The coating thickness, roughness and structure were found to depend on the substrate temperature. The LaPO4 coatings produced at temperatures ranging from 150 to 250 degrees C exhibited a granular and porous structure. The treatment at temperatures higher than 300 degrees C enabled the production of rather dense coatings. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：4285 / 4290

页数：6

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