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Mechanical Properties of $CaO–Al_{2}O_{3}–SiO_{2}$ Glass-Ceramics Precipitating Hexagonal $CaAl_{2}Si_{2}O_{8}$ Crystals
| Content Provider | MDPI |
|---|---|
| Author | Maeda, Kei Akatsuka, Kosho Okuma, Gaku Yasumori, Atsuo |
| Copyright Year | 2021 |
| Description | Fracture behavior via a flexural test for a newly found CaO–Al2O3–SiO2 (CAS) glass-ceramic (GC) was compared with that of enstatite GC and mica GC, which are well-known GCs with high-fracture toughness and machinability, respectively. By focusing on the nonelastic load–displacement curves, CAS GC was characterized as a less brittle material similar to machinable mica GC, compared with enstatite GC, which showed higher fracture toughness, KIC . The microcrack toughening mechanism in CAS GC was supported by the nondestructive observation of microcracks around the Vickers indentation using the X-ray microcomputed tomography technique. The CAS GC also showed higher transparency than mica GC due to its low crystallinity. Moreover, the precursor glass had easy formability due to its low-liquidus temperature. |
| Starting Page | 393 |
| e-ISSN | 20734352 |
| DOI | 10.3390/cryst11040393 |
| Journal | Crystals |
| Issue Number | 4 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-04-08 |
| Access Restriction | Open |
| Subject Keyword | Crystals Ceramics Glass-ceramics Fracture Toughness Brittleness |
| Content Type | Text |
| Resource Type | Article |
