NDLI: Microwave sintering of Ca$_{0.6}$La$_{0.2667}$TiO$

Content Provider	Springer Nature Link
Author	Li, Jia mao Qiu, Tai
Copyright Year	2012
Abstract	Ca$_{0.6}$La$_{0.2667}$TiO$_{3}$ ceramics were prepared by conventional and microwave sintering techniques and their sinterability, microstructure, and microwave dielectric properties were investigated in detail for comparison. Densified Ca$_{0.6}$La$_{0.2667}$TiO$_{3}$ ceramics were obtained by microwave sintering at 1350°C for 30 min and by conventional sintering at 1450°C for 4 h. An unusual phenomenon was found that some larger grains (grain size range: 8–10 μm) inclined to assemble in one area but some smaller ones (grain size range: 2–4 μm) inclined to gather in another area in the microwave sintered ceramics. The microwave dielectric properties of Ca$_{0.6}$La$_{0.2667}$TiO$_{3}$ ceramics prepared by microwave sintering at 1350°C were as follows: dielectric constant (ɛ $_{r}$) = 119.6, quality factor (Qf) = 17858.5 GHz, and temperature coefficient of resonant frequency (τ $_{f}$) = 155.5 ppm/°C. In contrast, the microwave dielectric properties of the ceramics prepared by conventional sintering at 1450°C were ɛ $_{r}$ = 117.4, Qf = 13375 GHz, and τ $_{f}$ = 217.2 ppm/°C.
Starting Page	245
Ending Page	251
Page Count	7
File Format	PDF
ISSN	16744799
Journal	International Journal of Minerals, Metallurgy, and Materials
Volume Number	19
Issue Number	3
e-ISSN	1869103X
Language	English
Publisher	University of Science and Technology Beijing
Publisher Date	2012-03-01
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	perovskite microwave sintering microstructure dielectric properties Materials Science Metallic Materials Characterization and Evaluation of Materials Ceramics, Glass, Composites, Natural Methods Surfaces and Interfaces, Thin Films Tribology, Corrosion and Coatings
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Geochemistry and Petrology Mechanical Engineering

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