The structures and physical properties of SrO-B2O3-Al2O3 glasses
Creators
- 1. Chosun Univ., Kwangju (Republic of Korea)
- 2. Korea Univ., Seoul (Republic of Korea)
Description
The B11 NMR spectra have been employed to study the structure of glasses in the ternary system SrO-B2O3-Al2O3. The fraction of BO4 units(N4) are measured and analyzed. The results indicate that for the glasses containing less than 30 mol% SrO the ternary strontium boro aluminate glasses can be viewed as a binary strontium borate glasses diluted by Al2O3. Above 30 mol % Sr the borons with one or two non-bridging oxygen atoms are produced in the glasses. The micro hardness (HV) values of the glasses varies similarly as the N4 values with SrO contents, the refractive indices and the densities of the glasses are measured and polted as function of SrO contents. The relationship between the properties and the structures of the glasses are discussed. (Author)
Additional details
Publishing Information
- Journal Title
- Sci. Technol., Korea Univ.
- Journal Volume
- 23
- Series
- Sci. Technol., Korea Univ.
- Journal Page Range
- 51-58
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 14744018
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ALUMINIUM OXIDES; BORON OXIDES; DENSITY; GLASS; MICROHARDNESS; MICROSTRUCTURE; OXYGEN; REFRACTIVE INDEX; STRONTIUM OXIDES; TERNARY ALLOY SYSTEMS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALLOY SYSTEMS; ALUMINIUM COMPOUNDS; BORON COMPOUNDS; CHALCOGENIDES; CRYSTAL STRUCTURE; ELEMENTS; HARDNESS; MECHANICAL PROPERTIES; NONMETALS; OPTICAL PROPERTIES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; STRONTIUM COMPOUNDS