Design
Materials
Process
Oxides Database
J.P. Leonard, Varient Precision LLC, Madison WI. v1.0 - August 2010Inorganic oxides are interesting due the wide array of unary, binary or higher compounds that can stably exist under ambient conditions. These compounds exhibit many complex crystallographic structures, which have found technical use in many areas. As most oxides are insulators with associated large bandgap, and specific charge/defect/stoichiometry requirements they can be modified to exhibit many useful photonic, electronic, ferroelectric, chemical or other characteristics. In some systems the research has been extensive and many physical properties are known. Other systems of less technical interest or metastable nature are far less understood. Much as with metals, the microstructure of most oxides in practical use today is polycrystalline. The effect of these microstructures on properties and our ability to control them via processing is one of the great remaining challenges of Materials Science. Much of my work with oxides has centered on UV irradiation, melt-mediated and solid-phase transformations. For this reason this properties database contains the following categories:
- ParentThe simple unary (or binary) system stably formed without impurities.
- DerivativeA system derived from the parent but with added impurities or of a metastable nature.
- NameCommonly given name for compound
- StructureCrystallographic structure or family
- PhysicsElectronic, photonic and/or ferroelectric properties of interest.
- T
m Melting temperature [K] - UVShort wavelength threshold of transparency.
- IRLong wavelength threshold of transparency.
- αCoefficient of thermal expansion [10-6 / K]
- k(Tm)Thermal conductivity of solid at the melting point [W/(m K)]
- ηViscosity of liquid at the melting point [N sec / m2]
- dT/dtCritical quench rate observed for glass formation [K/sec]
- ΔHfEnthalpy of melting [kJ/mol]
- UseDemonstrated technical uses or notable behavior
The tabular database presented here is an aggregation of physical properties that I have collected in the course of my oxide research. It is updated regularly as I come across new information. This database is being made available free of charge by Varient Precision LLC to clients and other internet users under a Creative Commons Attribution/ShareAlike license detailed on the Varient Precision copyright page. By accessing the database table, you agree to these terms. Please note that abbreviated literature references are given where available. The table is large (3.9mb) - CLICK HERE to proceed.