• Proceedings of the Materials Research Society of Korea Conference
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• 한국재료학회 1999년도 춘계학술발표강연 및 눈문개요집
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• pp.94-94
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• 1999

• Proceedings of the Korean Magnestics Society Conference
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• 한국자기학회 2011년도 자성 및 자성재료 국제학술대회
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• pp.17-17
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• 2011

• Proceedings of the Korean Magnestics Society Conference
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• 한국자기학회 2015년도 자성 및 자성재료 국제학술대회
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• pp.20-20
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• 2015

• Proceedings of the Korean Magnestics Society Conference
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• 한국자기학회 1998년도 추계연구발표회 논문개요집
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• pp.24-25
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• 1998

• Proceedings of the Materials Research Society of Korea Conference
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• 한국재료학회 2006년도 추계학술발표대회 및 제11회 신소재 심포지엄
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• pp.25.1-25.1
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• 2006

• Journal of radiological science and technology
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• 제4권1호
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• pp.3-7
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• 1981

• Proceedings of the Korean Magnestics Society Conference
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• 한국자기학회 2014년도 자성 및 자성재료 국제학술대회
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• pp.77-77
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• 2014

• Proceedings of the Korean Magnestics Society Conference
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• 한국자기학회 2016년도 자성 및 자성재료 국제학술대회
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• pp.156-156
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• 2016

• Proceedings of the Korean Vacuum Society Conference
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• 한국진공학회 1998년도 제16회 학술발표회 논문개요집
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• pp.122-122
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• 1998

• Journal of the Korean Ceramic Society
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• 제49권4호
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• pp.318-324
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• 2012

Reaction-bonded silicon nitrides containing rare-earth oxide sintering additives were densified by gas pressure sintering. The sintering behavior, microstructure and mechanical properties of the resultant specimens were analyzed. For that purpose, $Lu_2O_3-SiO_2$ (US), $La_2O_3$-MgO (AM) and $Y_2O_3-Al_2O_3$ (YA) additive systems were selected. Among the tested compositions, densification of silicon nitride occurred at the lowest temperature when using the $La_2O_3$-MgO system. Since the $Lu_2O_3-SiO_2$ system has the highest melting temperature, full densification could not be achieved after sintering at $1950^{\circ}C$. However, the system had a reasonably high bending strength of 527 MPa at $1200^{\circ}C$ in air and a high fracture toughness of 9.2 $MPa{\cdot}m^{1/2}$. The $Y_2O_3-Al_2O_3$ system had the highest room temperature bending strength of 1.2 GPa.