Specifications

expansion rates of metal/ceramic composite heat sink, a method for the production of highly
aligned porous ceramics substrate by multilayer freeze-tape-casting process with aqueous
alumina slurry was proposed. The effects of solid content and freezing temperature on the
porosity and pore size were investigated, and the pore morphology (e.g., degree of pore
alignment, pore size and interconnection between the pores) of the fabricated samples was
characterized by field emission scanning electron microscopy. Furthermore, the thermal fatigue
properties of porous ceramic substrate were also examined. The results show that the porosity
(volume fraction) gradually decreases from 62.1% to 51.4% with the increase of solid content
(mass fraction) from 30% to 40%, and the pore size decreases gradually with the decrease of
freezing temperature from -15°C to -45°C. The optimum thermal fatigue properties were
obtained at the solid content of 40% and the freezing temperature of -45°C. Also, the pore
channels between the layers of ceramic substrate produced by multilayer freeze-tape-casting
process could be connected.
Number of references: 16
Main heading: Ceramic materials
Controlled terms: Alumina - Field emission microscopes - Freezing - Multilayers -
Pore size - Substrates - Thermal fatigue
Uncontrolled terms: Aqueous alumina slurry - Field emission scanning electron microscopy
- Freeze-drying - Freezing temperatures - Porosity and pore size - Porous ceramics
- Tape casting - Thermal fatigue properties
Classification code: 933.1 Crystalline Solids - 822.2 Food Processing Operations - 812.1
Ceramics - 951 Materials Science - 801 Chemistry - 461 Bioengineering and Biology -
421 Strength of Building Materials; Mechanical Properties - 741.3 Optical Devices and
Systems
DOI: 10.7521/j.issn.0454-5648.2013.02.03
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
3.
Accession number: 20131916310522
Title: Photoluminescence spectroscopic study of BaMgAl10O 17:Eu Phosphor coated with CaF2
via a sol-gel process
Authors: Li, Feng1, 2 ; Yang, Ying2 ; Song, Yang1 ; Wang, Wubao3 ; Yang, Wei3 ; Yang, Bingya3/
李峰;杨莺;;;;;
Author affiliation: 1 School of Material Science and Engineering, Xi'An University of
Technology, Xi'an 710048, China
2 School of Physical Science and Technology, Nanjing University of Aeronautics and Astronautics,
Nanjing 210016, China
3 IRICO Group Corporation, Xianyang 712000, China
Corresponding author: Li, F. ([e-mail])
Source title: Journal of Spectroscopy
Abbreviated source title: J. Spectroscopy
Volume: 1
Issue: 1
Issue date: 2013