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2005年08月30日

【期刊论文】Microstructure of hot-pressed B4C-TiB2 thermoelectric composites

蔡克峰， K. F. Cai a.b.*， C. W. Nan c， M. Schmuecker a， E. Mueller a

K. F. Cai et al./Journal of Alloys and Compounds 350(2003)313-318，-0001，（）：

-1年11月30日

B4C-TiB2 thermoelectric composites were prepared via hot-pressing. The phase composition, microstructure of the samples were characterized by means of XRD, SEM and TEM. The composition of different phases, including grain boundary phase, was analyzed by means of EDS. The effects of the microstructure on the thermoelectric properties of the composites are discussed.

Composite materials， Semiconductors， Powder metallurgy， SEM， TEM

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2005年08月30日

【期刊论文】Preparation of Al2O3-AlON and Al2O3-AlN composites via reaction-bonding

蔡克峰， K. F. CAI*， D. S. MCLACHLAN

，-0001，（）：

-1年11月30日

摘要

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2005年08月30日

【期刊论文】Preparation, microstructures and properties of Al2O3-TiC composites

蔡克峰， K. F. Cai a， *， D. S. McLachlan a， N. Axenb， R. Manyatsa b

K.-F. Cai et al./Ceramics International 28(2002)217-222，-0001，（）：

-1年11月30日

摘要

Al2O3-TiC composites with various amounts of TiC, from 16 to 30 vol.%, were pressureless-sintered using 1 wt.% Al as an additive. The electrical conductivity, Vickers hardness, fracture toughness and wear resistance of the composites were studied. The hardness and toughness increased gradually with the increase of TiC volume fraction. The electrical conductivity increased with the increase of TiC volume fraction and increased about 10 orders of magnitude as the TiC volume fraction changed from 0.20 to 0.23. A sample whose TiC volume fraction is 0.23, which is close to its percolation threshold, had the best wear resistance.

B.， Composites， B.， Microstructure， D.， Alumina， Properties， Titanium carbide

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2005年08月30日

【期刊论文】Ultra Long SiC/SiO2 Core-Shell Nanocables from Organic Precursor

蔡克峰， K. F. Cai， * Q. Lei， and L. C. Zhang

Journal of Nanoscience and Nanotechnology Vol.5, 1-4, 2005，-0001，（）：

-1年11月30日

摘要

Ultra long SiC core and SiO2 shell nanocables have been prepared by pyrolysis of poly (dimethyl siloxane) at 1050℃ in ﬂowing Argon. The longest nanocable can be up to at least 6mm. Transmission electron microscopy observations indicate that the diameter of the cores varies from about 3 to 18nm, and the thickness of the outer sheaths varies from about 6 to 45nm and that the cores are crystalline and the sheaths are amorphous. The growth of the nanocables may be governed by a chemical vapor solid process. The nanocables exhibit good photoluminescence property.

SiC,， SiO2,， Nanocables,， Nanostructures,， Poly (， Dimethyl Siloxane)， ,， Pyrolysis,， Crystal Growth,， Chemical Vapor Deposition.，

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2005年08月30日

【期刊论文】THE MICROSTRUCTURE OF (Nb, Ti) C-35Ni (Y2O3) CERMET

蔡克峰， Ke-feng Cai*， Ce-Wen Nan， and Xin-min Min

Meterials Research Bulletin, Vol 32, No.10: pp. 1327-1332, 1997，-0001，（）：

-1年11月30日

摘要

The microstructure of (Nb, Ti) C-35Ni (Y2O3) cermet prepared via hot iso-static pressing (HIP) is observed by transmission electron microscopy (TEM). The mechanism of Y2O3 improving the flexural strength at high temperature of the cermet is suggested and the reasons for no surrounding structure formation in the cermet are explaind.

A.， ceramics,， A,， structural materials,， C.， electron microscopy,， D.， mechanical propertties,， D.， microstructure

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