Paper Titles
Study on Erosion Resistance of Structural Ceramics
p.1323
Unlubricated Sliding Wear of TiN Particle Reinforced Si3N4 Matrix Composites Against AISI-52100 Steel Ball
p.1327
Erosion Wear Characteristics of Si3N4 Fabricated from Low-Cost Powders
p.1331
Oxidation Behaviors of MgAlON/Si3N4 Composite at High Temperature
p.1335
Synthesis of Ti3SiC2 Bulk Materials with B2O3 Additive
p.1339
A Soft Ceramic Ti3SiC2 with Microscale Plasticity at Room Temperature
p.1343
Frictional Layer and Its Antifriction Effect in High-Purity Ti3SiC2 and TiC-Contained Ti3SiC2
p.1347
Sliding Friction Behavior of Bulk Ti3SiC2 under Difference Normal Pressures
p.1353
Tribo-Chemical Reaction in Bulk Ti3SiC2 under Sliding Friction
p.1357

Synthesis of Ti3SiC2 Bulk Materials with B2O3 Additive

Article Preview

Abstract:

Ti3SiC2 bulk materials by hot-pressing sintering were presented through adding a little amount of B2O3 as a low-temperature additive in different raw-material systems. In one system, elemental titanium, silicon and active carbon were used as reactants with a molar ratio of 3: 1: 2. In another one, titanium carbide, titanium and silicon reacted together with a molar ratio of 2:1:1. At different temperatures, samples were synthesized by hot-pressing with a heating rate of 30°C min-1 before 1200°C and then 10°C min-1 to peak temperatures, holding for 2h. The effect of sintering temperature on the purity of Ti3SiC2 was investigated at the range of 1200°C to 1500°C. The products mainly contained Ti3SiC2 with TiC as the second phase. In some cases, Ti5Si3 appeared as well. When sintered at 1300°C, above 98vol% Ti3SiC2 was obtained in the elemental system. The roles of B2O3 additive were considered as weakening the thermal explosion reaction in the elemental mixture and affecting the diffusion procedure at low temperature in both systems.

You might also be interested in these eBooks
High-Performance Ceramics III View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 280-283)

Pages:

1339-1342

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.280-283.1339

Citation:

Cite this paper

Online since:

February 2007

Authors:

Li Feng Wu, Chang An Wang, Yong Huang

Keywords:

B2O3 additive, Bulk Materials, Hot-Pressing, Ti3SiC2

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] W. Jeitschko and H. Nowotny: Monatsch. Chem. Vol. 98 (1967), p.329.

Google Scholar

[2] T. Goto and T. Hirai: Mater. Res. Bull. Vol. 22 (1987), p.1195.

Google Scholar

[3] R. Pampuch, J. Lis, J. Piekarczyk and L. Stobierski: J. Mater. Synth. Process Vol. 1 (1993), p.93.

Google Scholar

[4] J. Lis, Y. Miyamoto, R. Pampuch and K. Tanihata: Mater. Lett. Vol. 22 (1995), p.163.

Google Scholar

[5] J. Morgiel, J. Lis and M. Tymkiewiez: Mater. Lett. Vol. 27 (1996), p.85.

Google Scholar

[6] M.W. Barsoum and T. El-Raghy: J. Am. Ceram. Soc. Vol. 79 (1996), pp. (1953).

Google Scholar

[7] S. Myhra, J.W.B. Summers and E.H. Kisi: Mater. Lett. Vol. 39 (1999), p.6.

Google Scholar

[8] Z.M. Sun and Y.C. Zhou: Scripta Mater. Vol. 41 (1999), p.61.

Google Scholar

[9] J.Q. Zhu, B.C. Mei, X.W. Xu and J. Liu: Mater. Lett. Vol . 58 (2004), p.588. Fig. 3. Samples hot-pressed at different temperatures for 2h. TiC: Ti: Si=2: 1: 1(molar ratio), add 5wt% B2O3 as sintering additive.

Google Scholar