INVESTIGATING OXIDE SINTERING BY THE ELECTRIC-CONDUCTIVITY METHOD
Sintering of CeO/sub 2/ with admixtures of BeO (5 mole%), MgO (10 mole%), CaO (15 mole%), and SrO (9 mole%) was studied. Changes in the electric resistivity were determined as functions of the composition, time of holding, and sintering temperature. Electric resistivity versus sintering time curves were plotted. The electric resistivity of the specimens (solid solutions) increased in the sintering process. Sintering was conducted in a Silit furnace at shrinkage values of the specimens are in agreement with changes in the electric resistivity. It was established that at 1200 to 1350 nif- C CeO/sub 2+/ SrO mixtures are most rapidly sintered, and CeO/sub 2/ + BeO mixtures at 1450 to 1550 nif- C. The relative sintering rate of mixtures with additions of CaO and MgO was approximately the same at all temperatures investigated. It is shown that the measurement of electric resistivity can be used as a sensitive method for investigating sintering of oxide ceramic specimens. Hypotheses to explain the mechanism of the (diffusion) process are given. (P.C.H.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-17-018836
- OSTI ID:
- 4731764
- Journal Information:
- Tr. Inst. Elektrokhim., Akad. Nauk SSSR, Ural'sk Filial, Journal Name: Tr. Inst. Elektrokhim., Akad. Nauk SSSR, Ural'sk Filial Vol. Vol: o. 2
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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