Paper Titles
Synthesis of Diamond Particles under Alkaline Hydrothermal Conditions
p.271
Nanotube and Nanorod Synthesis under High Frequency Electric Discharge Assisted Mechanical Milling
p.277
Buried Nano - Structured Layers in High Temperature – Pressure Treated Si:He
p.285
Pressure-Assisted Lateral Nanostructuring of the Epitaxial Silicon Layers with SiGe Quantum Wells
p.291
Fabrication and Physical Properties of SiC-GaAs Nano-Composites
p.297
Nanopowder Diffraction Theory – Line Profile for Polydispersive Powders
p.303
Error Estimation in XRD Crystallite Size Measurements
p.313
SAXS and XAFS Analysis in Forming of Metal Nanoparticles in Water-in-scCO2 Microemulsions
p.321
X-Ray Analysis of High Pressure Torsion Induced Nanostructures in Ti and Ni
p.329

Fabrication and Physical Properties of SiC-GaAs Nano-Composites

Article Preview

Abstract:

Nano-composites consisting of a primary matrix phase of hard nanocrystalline SiC and a secondary nanocrystalline GaAs semiconductor phase were obtained by high-pressure zone infiltration. The synthesis occurs in three stages: (i) at room- temperature the SiC nanopowder is compacted under high pressure to 8 GPa, (ii) the temperature is increased to 1240°C, above the melting point of GaAs, and the pores were filled with liquid, (iii) on cooling GaAs nanocrystallites grow in the pores. The synthesis was performed using a toroid-type high-pressure apparatus (IHPP PAS, Warsaw) and a six anvil cubic press (MAX80 at HASYLAB, Hamburg). X-ray diffraction studies were performed with a laboratory D5000 Siemens diffractometer. The phase compositionn, grain size and macrostrains in the synthesized materials were examined. The microstructure of the composites was characterized using a Scanning Electron Microscopy (SEM), and High Resolution Transmission Electron Microscopy (TEM). Far-infrared reflectivity and Raman spectroscopy measurements were used to trace built-in strains.

You might also be interested in these eBooks
High Pressure Technology of Nanomaterials View Preview

Info:

Periodical:

Solid State Phenomena (Volume 114)

Pages:

297-302

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.114.297

Citation:

Cite this paper

Online since:

July 2006

Authors:

Grzegorz Kalisz, Ewa Grzanka, Dariusz Wasik, Anna Swiderska-Sroda, Stanislaw Gierlotka, Jolanta Borysiuk, Maria Kaminska, Andrzej Twardowski, Bogdan F. Palosz

Keywords:

High-Pressure, Nanocomposite, X-Ray Diffraction (XRD)

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2006 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] M. Sternitzke, J. Eur. Ceram. Soc., 17 (1997) 1061.

Google Scholar

[2] E. A. Ekimov, A. G. Gavriliuk, B. Palosz, S . Gierlotka, P. DłuŜewski, E. Tatianin, Yu. Kluev, A. M. Naletov, P. Biczyk, A. Grzegorczyk and A. Presz, Appl. Phys . Lett. 77 (2000) 954.

DOI: 10.1063/1.1288602

Google Scholar

[3] S. Gierlotka, B. Pałosz, A. Świderska-Środa, E. Grzanka, G. Kalisz, R. Fedyk, S. Stel'makh, Solid State Phenomena, 101-102 (2005) 157-164.

Google Scholar

[4] O. Shimomura, Solid State Physics under Pressure, D. Reidel Publ. Comp., Dordrecht (1985).

Google Scholar

[5] E. Grzanka, S. Gierlotka, B. Palosz, A. Grzegorczyk, P. Biczyk, R. Pielaszek, U. Bismayer, HASYLAB Annual Report (2000) 556.

DOI: 10.4028/www.scientific.net/msf.378-381.735

Google Scholar

[6] F. Huisken, B. Kohn, R. Alexandescu, S. Cojocaru, A. Crunteanu, C. Reynaud and G. Ledoux, J. Nanopart. Res., 1 (1999) 293.

DOI: 10.1023/a:1010081206959

Google Scholar