tantalum oxide

tantalum oxide

[′tant·əl·əm ′äk‚sīd]
(inorganic chemistry)
Ta2O5 Prisms insoluble in water and acids (except for hydrofluoric); melts at 1800°C; used to make tantalum, in optical glass and electronic equipment, and as a chemical intermediate. Also known as tantalic acid anhydride; tantalum pentoxide.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The average grade across the deposits was 323 parts per million of tantalum oxide, with an indicated tantalum mineral resource of 911 per million at Purple Haze.
Recently, the manufacturer of MTA Plus marketed NeoMTA Plus for the aesthetically important areas by changing the bismuth oxide with tantalum oxide within its composition.
The pegmatite fields of San Luis have an important past record of producing mica, beryl, spodumene, tantalite (tantalum oxide), columbite (niobium oxide), and recently potassium feldspar, albite and quartz.
[C.sub.so] and the [R.sub.so] are capacitance and parallel resistance of the interfacial silicon oxide layer, while [C.sub.tp] and [R.sub.tp] are capacitance and parallel resistance of the bulk tantalum oxide layer.
XRD analysis for the dry powder of NeoMTA Plus root repair shows the presence of calcium silicate (hatrurite, [Ca.sub.3]Si[O.sub.5]; card number: 98-002-4452), calcium phosphate ([alpha]-[Ca.sub.3][(P[O.sub.4]).sub.2]; card number: 00-029-0359), calcium silicate (tobermorite, [H.sub.3.5][Ca.sub.2.25][O.sub.10][Si.sub.3]; card number: 98-004- 0048), tantalum oxide (tantite, [beta]-[Ta.sub.2][O.sub.5]; card number: 01-0892843), and calcium aluminum oxide (Ca[Al.sub.4][O.sub.7]) (Figure 2(c)).
Other topics include a galvanic cell made from pineapple peel scraps, a TA suppression method for coded PR channels, baseline popping correction algorithms for perpendicular magnetic recording systems, waste silicon carbide as filler for natural rubber compounds, tantalum oxide thin films, and the surface critical magnetic field of layered magnetic superconductors.
The team solved the problem by creating a stack of 84 alternating layers of two transparent materials: glass and tantalum oxide. Whenever light struck the stack at any angle other than the Brewster angle, it underwent some combination of reflection and bending as it encountered each boundary between layers.
Titanium, Zirconium, and Hafnium dioxide films are discussed as are zinc, tin, indium, and tantalum oxide. A chapter each is devoted to Nitride and metal films and the deposition of many different metals and nitrides is covered.
Weidlein, "Synthesis and properties of tantalum oxide nitride TaON," Angewandte Chemie International Edition, vol.
Schmuki, "Self-assembled porous tantalum oxide prepared in [H.sub.2]S[O.sub.4]/HF electrolytes," Electrochemical and Solid-State Letters, vol.