Molding Binder Influence on the Porosity and Gas Permeability of Ceramic Casting Molds.
binders
casting molds
gas permeability
nanosilica dioxide
precision casting
silica sand
µCT
Journal
Materials (Basel, Switzerland)
ISSN: 1996-1944
Titre abrégé: Materials (Basel)
Pays: Switzerland
ID NLM: 101555929
Informations de publication
Date de publication:
16 Jun 2020
16 Jun 2020
Historique:
received:
11
05
2020
revised:
13
06
2020
accepted:
15
06
2020
entrez:
21
6
2020
pubmed:
21
6
2020
medline:
21
6
2020
Statut:
epublish
Résumé
The investment casting process is widely used in the aerospace industry to produce complex engine parts. The article determines the properties of quartz powders, nanosilica dioxide binders, and multilayer samples of ceramic casting molds. The properties of spherical molds obtained using an alcohol-water system derived from hydrolyzed ethyl silicate (ZKE) and LUDOX PX-30 (type Q1) were compared with those obtained in water systems derived from Remasol Plus and Remasol Premium binders (type Q2). The spherical samples are composed of seven layers made with the use of an immersion-sprinkling method. To assess the properties of the molds, X-ray microscopy (µCT), scanning electron microscopy (SEM), and gas permeability analysis over a temperature range of 20-950 °C were utilized. The binder type is proven to affect the properties of the casting mold samples. The material obtained in the water system, Q2, has advantageous properties such as a high porosity and gas permeability.
Identifiants
pubmed: 32560239
pii: ma13122735
doi: 10.3390/ma13122735
pmc: PMC7345566
pii:
doi:
Types de publication
Journal Article
Langues
eng
Références
Materials (Basel). 2016 Nov 16;9(11):
pubmed: 28774050
Materials (Basel). 2017 Oct 27;10(11):
pubmed: 29077067
Materials (Basel). 2019 Mar 21;12(6):
pubmed: 30901818
Materials (Basel). 2019 Aug 30;12(17):
pubmed: 31480212