Coloring Mechanism of Rare Earth Polishing Powder and Study of its Factors

En Wu Liang; Shou Zhi Yi; Zhi Jie Wei; Li Hua Ren; Zhong Xin Fang; Xi Long Wang; Yuan Yuan Wu; Xuan Zhang

doi:10.4028/www.scientific.net/AMM.538.36

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 538Coloring Mechanism of Rare Earth Polishing Powder...

Coloring Mechanism of Rare Earth Polishing Powder and Study of its Factors

Abstract:

The better appearance of LCD rare earth polishing powder, the better sales. High-performance polishing powder for LCD was synthesized by using NH₄HCO₃ subsidence method, with rare earth carbonate as starting material. Coloring mechanism of rare earth polishing powder was studied by using TGA, XRD and so on. Color of rare earth polishing powder was quantitative described with the values of L, a, b, R, and chemical composition had a great influence on it. The result showed that Ca, Mg, Zn, Mn, P, Fe, Cu had a great effect on the white color of rare earth polishing powder, and the color had regular changes with chemical composition, calcining temperature, calcining time. The result can control production of rare earth polishing powder based its color, and it has significant practical value to color control of rare earth polishing powder.

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Periodical:

Applied Mechanics and Materials (Volume 538)

Pages:

36-39

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.538.36

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Online since:

April 2014

Authors:

En Wu Liang, Shou Zhi Yi*, Zhi Jie Wei, Li Hua Ren, Zhong Xin Fang, Xi Long Wang, Yuan Yuan Wu, Xuan Zhang

Keywords:

Color, LCD, NH₄HCO₃ Subsidence Method, Rare Earth, Rare Earth Polishing Powder

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