Mangkonsu, Chuthathip
(2014)
Comparative Study On The Sintering Of Calcium Phosphate Ceramic By Conventional And Microwave Sintering.
Masters thesis, Perpustakaan Hamzah Sendut.
Abstract
Sintering of calcium phosphate bioceramic were performed using microwave and
conventional furnaces. The calcium phosphate precursor was used as raw material
powder. Sintering of biphasic calcium phosphate (B'Cl") was successful using both
sintering methods. The precursor powder was characterized by XRO, TG/ ose and
particle size analysis. Sintering was done at different temperatures (1200 oe, 1250 oe,
1300 oe, 1350 oe, and 1400 Oe) using conventional and microwave furnaces. For the
microwave sintering, the firing process was stopped, when the temperature reached at
1350 oe because the specimens cracked and the surfaces were damaged especially on
the edge of specimens. Then the Bep specimens were characterized by XRO and
FESEM while physical properties measured include density, porosity and linear
shrinkage. The mechanical properties of bulk Bep were determined by using Micro
Vickers hardness and diametrai tensile strength (OTS). The comparison on properties
was carried out on specimens sintered at the same temperature using both methods. The
XRO results showed that the f3-TCf' to (l-TCf' transformation phase occurs above 1250
oe in both sintering furnaces.
Actions (login required)
 |
View Item |
