Interface Structures of Al2O3-ZrO2 Coated Engineering Ceramics by Sol-Gel Process

Journal of Inorganic Materials

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Interface Structures of Al₂O₃-ZrO₂ Coated Engineering Ceramics by Sol-Gel Process

ZHANG Qin-Jian¹; ZHANG Jian-Hua¹; LI Min²; ZHANG Qin-He¹; QIN Yong ¹

1.School of Mechanical Engineering; Shandong University; Jinan 250061; China; 2.School of Environ-mental Engineering; Tongji University; Shanghai 200092; China

Received:2001-02-05 Revised:2001-03-23 Published:2002-01-20 Online:2002-01-20

Abstract

Abstract: Al₂O₃-ZrO₂ coating was prepared on alumina based engineering ceramics by using inorganic salt as precursors. The results of SEM, XRD and Secondary Ion Mass Spectrometry (SIMS) show that the coating exhibits the complete morphology with the homogeneous crystal grain. In addition, The coating is mainly composed of a-Al₂O₃and t-ZrO₂ after heat treatment at 1100 ℃ for 1h. The coating and substrate adheres each other compactly with distinct interdiffusion near the interface.

Key words: sol-gel process, Al₂O₂-ZrO₂ coating, engineering ceramics, interface

CLC Number:

TQ174

ZHANG Qin-Jian,ZHANG Jian-Hua,LI Min,ZHANG Qin-He,QIN Yong. Interface Structures of Al₂O₃-ZrO₂ Coated Engineering Ceramics by Sol-Gel Process[J]. Journal of Inorganic Materials.

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Interface Structures of Al₂O₃-ZrO₂ Coated Engineering Ceramics by Sol-Gel Process

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