Garnet compressibility

Because of the importance of garnet in upper-mantle parageneses, the compressibility of this phase has been the subject of many experimental studies. Ha-zen and Finger (1978), studying the compressibility of pyrope, observed that the... 

Sato Y, Akaogi M., and Akimoto S. (1978). Hydrostatic compression of the synthetic garnets pyrope and almandine. J. Geophys. Res., 83 335-338. 

Similar process was also used to develop yttrium aluminum garnet (Y3AI5O12, YAG) transparent ceramics with nanosized grains [52], In this study, a high-pressure cell was used, where disk samples were placed in a capsule made of NaCl, both to ensure the quasi-hydrostatic compression of the sample and prevent its contact with the graphite heater. The whole structure was then contained in the pyrophyllite high-pressure cell. The sample temperature in the high-pressure cell... 

Yttrium aluminum garnet (Y3AI5O12 or YAG) has a cubic crystal structure with a large cell parameter and a melting point close to that of corundum (Table I). Compression creep tests performed on YAG single crystals show that (1) it is the most creep resistant oxide presently known, and (2) its creep resistance is not strongly dependent on the crystal orientation (contrary to what is observed for corundum) [103-104]. 

Zneng W-C (1995) Determination of the local compressibilities for Cr ions in some garnet crystals from high-pressure spectroscopy. J Phys Cond Matter 7 8351... 

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