Grinding Characteristics and Removal Mechanisms of LaPO4/Al2O3 Micro-Nano Composite Ceramics

Wen Lai Zhang; Xin Wang; Chao Hong Liu; Gui Jun Jiang; Qiu Ju Zheng

doi:10.4028/www.scientific.net/AMR.306-307.774

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 306-307Grinding Characteristics and Removal Mechanisms of...

Grinding Characteristics and Removal Mechanisms of LaPO₄/Al₂O₃ Micro-Nano Composite Ceramics

Abstract:

In this paper, the prepared LaPO₄/Al₂O₃ composite ceramics were ground by the surface grinding machine. The phase composition and morphology of the coated powders as well as the microstructure of grinding surface of the ceramics were characterized by X-ray diffraction (XRD), Transmission electron microscopy (TEM) and Scanning electron microscope (SEM), respectively. The results show that the coated powders have a distinct core-shell structure which has a great effect on material’s removal approaches. The main fracture mode is caused by intragranular fracture of layered LaPO₄ rather than the weak interface. Besides, the primary grinding removal mechanism of LaPO₄/Al₂O₃ composite ceramics mainly rise from cracks propagating along the interlayer of LaPO₄.

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Periodical:

Advanced Materials Research (Volumes 306-307)

Pages:

774-777

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.306-307.774

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Online since:

August 2011

Authors:

Wen Lai Zhang, Xin Wang, Chao Hong Liu, Gui Jun Jiang, Qiu Ju Zheng

Keywords:

LaPO₄/Al₂O₃, Machinable Ceramic, Microstructure, Removal Mechanism

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