title: Study on the castability of Co-Cr alloy for cast plates. Part 3: Effects of alloy fusion temperature and the heating temperature of the cast ring.
abstract: Co-Cr alloy is used more frequently than Ni-Cr alloy as a non-precious alloy for cast plates in Japan. However, since the melting temperature of Co-Cr alloy is very high, about 1300 degrees C, and since it oxidizes easily, a vacuum-pressure casting machine capable of melting this alloy in a reduced atmosphere has recently been developed. Using this machine, the effects of fusion temperature and the heating temperature of the cast ring on the Co-Cr alloy were studied. It was found that in the vacuum-pressure casting method, both the fusion temperature of the Co-Cr alloy and the heating temperature of the cast ring had a significant effect (p < 0.01) on the castability of the Co-Cr alloy.
authors.affiliation: Department of Partial Denture Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Satoh
authors.forename: T
authors.initials: T
authors.lastname: Ohyama
authors.forename: E
authors.initials: E
authors.lastname: Nagai
authors.forename: M
authors.initials: M
authors.lastname: Matsuzu
authors.forename: H
authors.initials: H
authors.lastname: Toyoma
authors.forename: M
authors.initials: M
authors.lastname: Ohwa
authors.forename: E
authors.initials: E
authors.lastname: Kobayashi
authors.forename: H
authors.initials: H
authors.lastname: Sakurai
authors.forename: K
authors.initials: K
authors.lastname: Ohki
authors.forename: M
authors.initials: M
authors.lastname: Nishiyama
mesh_terms: D002858:Chromium Alloys / Q000737:chemistry*; D003734:Dental Casting Investment / Q000737:chemistry*; D003735:Dental Casting Technique / Q000295:instrumentation*; D003775:Dental Polishing; D006358:Hot Temperature; D008422:Materials Testing; D011312:Pressure; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry; D014618:Vacuum
chemical_list: D002858:Chromium Alloys; D003734:Dental Casting Investment; D014025:Titanium