Machinable nanocomposite ceramics

Advanced ceramic materials have been successfully developed over the past few decades. They are widely used in a variety of applications for their superior properties in comparison to conventional materials, such as metals and polymers. A few of these properties include high strength-to-mass ratio, excellent wear resistance and exceptional corrosion resistance. 

Ceramic composites may be defined as those ceramic materials that consist of two or more fundamentally different components that are able to act 

1 Crystal structure and morphology of some previously used ceramic interface phases (a) h-BN (b) Ti3SiC2 (courtesy of Y.M. Luo, Tsinghua University) (c) and (d) LaP04. 

2 Effect of LaP04 content on the bending strength of A CVLaPO  

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Wu, H.Z., Roberts, S.G. and Derby, B. Residual stress and subsurface damage in machined alumina and alumina/silicon carbide nanocomposite ceramics , Acta Mater. 49 (2001) 507-517. 

The super-fine dispersoids with laminar structure and a low modulus could be expected to play a crucial role in improving the machinability of ceramics and their mechanical properties. Among the various nanocomposites, h-BN reinforced composites showed excellent corrosion resistance to molten metal... 

Uno T, Kasuga T, Nakayama S., and Ikushima A., "Microstructure of Machinable Nanocomposite Glass-Ceramic,"/. Jpn. Powder Powder MetalL, 39, 1067-71 (1992). 

T.Kusunose, T.Sekino, Y.H. Choa, and K. Niihara, Machinability of Silicon Nitride/Boron Nitride Nanocomposites, J. Am. Ceram. Soc., 85, 2689-95(2002). 

J. Fischer and B. Stawarczyk. Compatibility of machined Ce-TZP/Al203 nanocomposite and a veneering ceramic. Dent. Mater., 23, 1500-05 (2007),... 

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