[Determination of high temperature compressive strength and refractory degree of die material compatible with slip casting core of sintered titanium powder].
OBJECTIVE
The refractory die is the precondition for developing slip casting core of sintered powder. This study is to determine the high temperature properties of the refractory die material compatible with slip casting core.


METHODS
To prepare three cylindrical specimens (phi 10 x 15 mm) and determine their compressive strength at 1000 degrees C: to make four specimens in flat-topped cone for determining the practical refractory degree by decreasing the pressing temperatures in a sequence of 1420, 1400, 1350 and 1100 degrees C.


RESULTS
The compressive strength of this material was 17.8 MPa at 1000 degrees C. Its practical refractory degree was higher than 1100 degrees C.


CONCLUSIONS
The high temperature properties of the refractory die material that we developed meet the demand of slip casting core of sintered powder.
Kuang
X
X
College of Stomatology, West China University of Medical Sciences.
Liao
Y
Y
Chao
Y
Y
Meng
Y
Y
D019245:Compressive Strength; D003442:Crowns; D003734:Dental Casting Investment; D003735:Dental Casting Technique; D006358:Hot Temperature; D008422:Materials Testing; D016876:Metal Ceramic Alloys; D011208:Powders; D014025:Titanium
D003734:Dental Casting Investment; D016876:Metal Ceramic Alloys; D011208:Powders; D014025:Titanium