Affiliation:
1. National University of Kaohsiung
2. Southern Taiwan University
3. Kao Yuan University
Abstract
5~15 wt% MgO-CaO-Al2O3-SiO2 (MCAS, fabricated by sol-gel method) glass is used as
the sintering aid of AlN ceramics. The sintering is proceeded from 1350oC~1550oC, scanning electron
microscope is used to observe the sintered morphologies and X-ray diffraction pattern are used to
confirm the crystal structures. From the SEM observations, as 10wt% and 15wt% MCAS is added,
AlN ceramics can be densified at 1500oC and 1450oC, which are much lower than the before studies
were. From the X-ray diffraction patterns, the crystal phases of MCAS-AlN ceramics are AlN, Al2O3,
and cordierite phases. In this study, the dielectric characteristics of MCAS-AlN ceramics are also
developed as a function of MCAS content and sintering temperature.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
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