注凝成型工艺的研究进展(4)

中 国 陶 瓷2011年 第 3 期

玻璃粉的选择侧重于分析不同低熔点玻璃粉在涂层制备中的助熔作用及对涂层性能的影响，可以看出同一系列的玻璃粉对性能也有不同影响。但应看到，本文在Q235钢表面制备的陶瓷涂层虽然耐蚀性耐磨性能有所提高，但提高幅度较小。这与本文制备陶瓷涂层时选用水玻璃作为粘结剂，未制备预涂层，热固化温度较低有关。由此可见，热化学反应法陶瓷涂层制备的最佳工艺方法有待深入探讨。

磨性较Q235基体有较大提高。

参 考 文 献

[1]李长青，左洪波，张明福等.固相反应法制备透明多晶YAG陶瓷[J].硅酸盐学报，2006，34(8)：979-983

[2]陈建康,屠平亮,周建初.用热化学反应法制备金属陶瓷涂层-涂层技术值得重视的新发展[J].材料工程,1991,4：17-20

[3]白进伟.低熔封接玻璃组成及其发展[J].材料导报,2002，16(12)：43-46

[4]穆柏春,张丽娟,谷志刚.耐热防腐蚀复相陶瓷涂层的研究[J].材料保护,1997,30(6)：24-26

[5]周武艺,唐绍裘.金属基高温耐磨陶瓷涂层的研制及耐磨性能[J].佛山陶瓷,2002,(6):13-15

3 结 论

(1)在Q235钢表面用固相反应法制备玻璃质陶瓷涂层，在固化过程中有莫来石新相（Al6Si2O13）生成。

(2)添加Ts≈450℃玻璃粉的固相反应陶瓷涂层耐盐性较Q235基体提高近11倍，耐酸性提高约3倍。

(3)添加Ts≈600℃玻璃粉的固相反应陶瓷涂层耐

PREPARING OF THE GLASSY CERAMIC COATING BY THE SOLID-PHASE

REACTION AND STUDY ON ITS PERFORMANCE

Wei Baojia1,Ma Zhuang1,Cui Changjun2,Yu Zhibo2

(1 Liaoning Technical University ,Liaoning, Fuxin 123000;2 SANYHE International Holdings Co., Ltd, shenyang 110027)

【Abstract】ceramic coating on Q235 steel were prepared by the solid-phase reaction,and the Bi2O3 - B2O3 - SiO2 series of low melting point glass were added into aggregate to promote the reaction and enhance the performance. the result indicated that the glass powder of the same series and different softening temperature added can improve the performance of coatings in different degree.

【Keywords】the solid-phase reaction，Q235 steel，low melting point glass

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RESEARCH PROGRESS IN GELCASTING PROCESS

Liu Hao，Shen Chunying，Qiu Tai

(College of Materials Science and Engineering，Nanjing University of Technology， Nanjing 210009)

【Abstract】The principle of gel-casting process, the dispersion mechanism of slurry ,the process of gel

solidify and the drying theory of green body are introduced. The influences of pH value, dispersant, solid loading, powder characteristic on the rheological behavior of suspensoid are analyzed. The problems and development in gel-casting of ceramic is forcasted.

【Keywords】gel-casting，rheological behavior，solidify，drying

24│中国陶瓷│CHINA CERAMICS│2011(47)第 3 期