Paper Titles
Preparation of Upconversion Luminescent NaYF4 Co-Doped with Yb3+/Er3+ via Hydrothermal Synthesis
p.394
Enhancement of Blue Emission via Upconversion in Solid-State Synthesized Hexagonal NaYF4:Ln3+
p.398
Preparation and Characterization of Transparent Nanocrystalline Ceramics
p.402
Synthesis of Ultrafine MgAl2O4 Powders by Nitrate-Citrate Sol-Gel Combustion Process
p.407
Preparation and Growth Mechanism of Hexagonal MgAl2O4 Spinel Fibers
p.409
Dielectric Properties of MgAl2O4 Transparent Nano-Ceramic
p.412
Highly doped Mn:MgAl2O4 Transparent Ceramics
p.414
Optical Properties and Microstructure of Mn: MgAl2O4 Transparent Ceramic after HIP Treatment
p.417
Fabrication of High Transparent YAG Ceramics by Vacuum Sintering at Low Temperature
p.420

Preparation and Growth Mechanism of Hexagonal MgAl2O4 Spinel Fibers

Article Preview

Abstract:

Hexagonal MgAl2O4 spinel fibers were synthesized at 1500oC for 6h in nitrogen atmosphere. The structure and morphology of the fibers were investigated using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The fibers grew via vapor- liquid- solid mechanism. The twin mechanism was suggested to play a key role in the formation process of the hexagonal fibers.

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

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Pages:

409-411

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.368-372.409

Citation:

Cite this paper

Online since:

February 2008

Authors:

Dao Yuan Yang, Fen Ling Qian, Kai Zhu, Zhan Ling Lu, Rui Zhang

Keywords:

Fiber, Growth Mechanism, Hexagonal Section, MgAl2O4

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2008 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] S. Chen, S. Hu and Q. Zhao: Artificial Crystal Gazette Vol. 26 (1997), p.380.

Google Scholar

[2] S. Chen and S. Hu: Piezoelectric and Acoustooptic Vol. 17 (1995), pp.19-23.

Google Scholar

[3] X. Xiao: Geometry Theory of Crystal Structure (High Education Press, Beijing, China, 1995).

Google Scholar

[4] N. Min: Physics Base of Crystal Growing (Shanghai Technology Press, Shanghai, China, 1982).

Google Scholar

[5] G. Jiang, H. Zhuang and B. Wang: Journal of Synthetic Crystals Vol. 28 (1999), pp.387-391.

Google Scholar

[6] J. Wang: Physics Vol. 30 (2001), pp.332-338.

Google Scholar

[7] H. Yumoto, T. Sako, Y. Gotoh, et al.: Journal of Crystal Growth Vol. 203 (1999), pp.136-140.

Google Scholar

[8] G. B. Gels, J.G. Buijnsters, S.A.C. Verhaegen, et al.: J. Crystal Growth Vol. 203 (1999), pp.554-563. Fig. 4 Boundary of twin crystal MgAl2O4 fibers( arrowed ).

Google Scholar