THE EFFECT OF NIOBIUM OXIDE (NB2O5 ) ON THE SINTERING BEHAVIOR OF COMPOSITE AL2O3-ZRO2

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KHARAZMIPOUR HOSSEIN; RANJBAR KHALIL

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Journal: Journal of Advanced Processes in Materials Engineering Year:2018 | Volume:12 | Issue:1 (44) Page(s): 11-24

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Title

THE EFFECT OF NIOBIUM OXIDE (NB2O5 ) ON THE SINTERING BEHAVIOR OF COMPOSITE AL2O3-ZRO2

Author(s)

KHARAZMIPOUR HOSSEIN | RANJBAR KHALIL | Issue Writer Certificate

Keywords

OXIDE NIOBIUMQ1

GRAIN SIZEQ1

ZIRCONIA PHASEQ2

ALUMINA-ZIRCONIA COMPOSITEQ1

SINTERQ2

Abstract

sample obtained from an ALUMINA-ZIRCONIA COMPOSITE following mechanical milling. To this end, alumina and zirconia powders were used as the raw materials and niobium oxide powder was used as additive. All of the ALUMINA-ZIRCONIA COMPOSITEs contained an invariant zirconia content equal to 10 weight percent, and 1 weight percent of niobium oxide was added to composite samples. Composite powders were subjected to axial pressure in tablet casts. Afterwards, samples were exposed to SINTERing for two hours in a thermal furnace at a temperature of 1300 to 1500. X-ray diffraction was used to identify phases, and microstructures were examined through the SEM (scanning electron microscope) method. Examination and experiment results indicated that niobium oxide considerably influenced SINTERing density, and increased density up to 3. 75 g/cm3. On the other hand, the size of background particles increased to 2. 19 microns after SINTERing and the tetragonal phases decreased. In this research, the effect of this oxide on the SINTERing mechanism of the ALUMINA-ZIRCONIA COMPOSITE and stability of the zirconia tetragonal phase were discussed and analyzed.

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APA: Copy

KHARAZMIPOUR, HOSSEIN, & RANJBAR, KHALIL. (2018). THE EFFECT OF NIOBIUM OXIDE (NB2O5 ) ON THE SINTERING BEHAVIOR OF COMPOSITE AL2O3-ZRO2. ADVANCED PROCESSES IN MATERIALS, 12(1 (44) ), 11-24. SID. https://sid.ir/paper/172756/en

Vancouver: Copy

KHARAZMIPOUR HOSSEIN, RANJBAR KHALIL. THE EFFECT OF NIOBIUM OXIDE (NB2O5 ) ON THE SINTERING BEHAVIOR OF COMPOSITE AL2O3-ZRO2. ADVANCED PROCESSES IN MATERIALS[Internet]. 2018;12(1 (44) ):11-24. Available from: https://sid.ir/paper/172756/en

IEEE: Copy

HOSSEIN KHARAZMIPOUR, and KHALIL RANJBAR, “THE EFFECT OF NIOBIUM OXIDE (NB2O5 ) ON THE SINTERING BEHAVIOR OF COMPOSITE AL2O3-ZRO2,” ADVANCED PROCESSES IN MATERIALS, vol. 12, no. 1 (44) , pp. 11–24, 2018, [Online]. Available: https://sid.ir/paper/172756/en

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