Phase relations in the system Al sub 2 O sub 3 -B sub 2 O sub 3 -Nd sub 2 O sub 3

Journal Article · Fri Feb 01 00:00:00 EST 1991 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1991.tb06906.x· OSTI ID:5162068

Ji, Y; Liang, J; Chen, Z; Xie, S ^[1]

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1. Inst. of Physics, Chinese Academy of Sciences, Beijing 100080 (CN)

This paper reports on the phase relations at a temperature below subsolidus in the system Al{sub 2}O{sub 3}-B{sub 2}O{sub 3}-Nd{sub 2}O{sub 3}. Specimens were prepared from various compositions of Al{sub 2}O{sub 3}, B{sub 2}O{sub 3}, and Nd{sub 2}O{sub 3} of purity 99.5%, 99.99%, and 99.9%, respectively, and fired at 1100{degrees}C. There are six binary compounds and one ternary compound in this system. The ternary compound, NdAl{sub 3} (BO{sub 3}){sub 4} (NAB), has a phase transition at 950{degrees}C {plus minus} 15{degrees}C. The high-temperature form of NAB has a second harmonic generation (SHG) efficiency of KH{sub 2}PO{sub 4} (KDP) of the order of magnitude of the form which has been used as a good self-activated laser material, and the low-temperature form of NAB has no SHG efficiency.

• OSTI ID: 5162068
• Journal Information: Journal of the American Ceramic Society; (United States), Vol. 74:2; ISSN 0002-7820
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
PHASE TRANSFORMATIONS
BORON OXIDES
NEODYMIUM OXIDES
HARMONIC GENERATION
HIGH TEMPERATURE
LASER MATERIALS
PHASE STUDIES
ALUMINIUM COMPOUNDS
BORON COMPOUNDS
CHALCOGENIDES
FREQUENCY MIXING
MATERIALS
NEODYMIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies