Sukanda AngkulpipatThapanee SrichumpongSahadsaya PrasertwongEkarat MeechoowasKrongkarn SirinukunwattanaGreg HenessRoberto RosaKallaya SuputtamongkolDuangrudee ChaysuwanUniversity of Technology SydneyKasetsart UniversityMahidol UniversityUniversità degli Studi di Modena e Reggio EmiliaScience2020-11-182020-11-182020-01-01Chiang Mai Journal of Science. Vol.47, No.6 (2020), 1283-1296012525262-s2.0-85094614809https://repository.li.mahidol.ac.th/handle/20.500.14594/59903© 2020, Chiang Mai University. All rights reserved. YSZ was added to glass frit in order to improve properties of the glass-ceramic dental materials by casting into a graphite mold and a cast iron mold and then crystallized via heat treatment. XRD results presented the similar crystalline phases of phlogopite-calcium mica and tetragonal zirconia in both molds. Microstructures by SEM showed the different crystal morphology due to casting molds. The slow cooling of graphite mold produced the equiaxed crystals whereas the fast cooling of cast iron mold promoted rod-like, and YSZ addition increased the number of crystals. The properties depended on the crystal morphology and crystallinity. The 5 wt% YSZ added glass-ceramic from graphite mold developed the equiaxed crystals to present the desirable properties of 147.15 MPa, flexural strength, 251.80 µg/cm2, chemical solubility and 9.26 × 10-6/°C CTE. The results were accepted by ISO 6872:2015 (Dentistry-Ceramic Materials) in type II class 2b as a partially and fully covered single substructure and matched with commercial porcelains.Mahidol UniversityBiochemistry, Genetics and Molecular BiologyChemistryMaterials ScienceMathematicsArticleSCOPUS