Fabrication and properties of hot pressed bismuth tungstate [electronic resource].

Published:: Urbana, Ill. : University of Illinois at Urbana-Champaign, 1978.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: Pages: 93 : digital, PDF file
Additional Creators:: University of Illinois at Urbana-Champaign and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Bi/sub 2/WO/sub 6/ is a synthetic polar material that is a possible candidate for energy conversion and detection systems. Previous research on this material has been concerned with crystal growth and sintering characteristics of polycrystalline compacts. This study involves itself with the fabrication of polycrystalline compacts by hot pressing techniques. Densities approaching theoretical crystal density were achieved by hot pressing at 850/sup 0/C for one hour with pressures exceeding 35 MPa. Before hot pressing, the sintering range was determined by high temperature dilatometry of unfired Bi/sub 2/WO/sub 6/ ceramics. Hot pressed discs were characterized by scanning electron microscopy, differential scanning calorimetry, and x-ray diffraction. Electrical properties were determined by dc resistivity, capacitance, and conductance measurements, ac poling, dc poling, and current-voltage measurements.

Report Numbers:

E 1.99:coo-1198-1219
coo-1198-1219

Subject(s):

Materials Science

Other Subject(s):

Note:

Published through SciTech Connect.
01/01/1978.
"coo-1198-1219"
Streicher, W.L.

Funding Information:

EY-76-C-02-1198

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