Molybdenum, valued for its high melting point and exceptional physical and chemical properties, is studied in diverse fields such as electronics, petrochemicals, and aviation. Among molybdenum oxides, molybdenum dioxide stands out for its higher electrical conductivity than other transition metal oxides due to its structural characteristics, exhibiting metallic properties. It is applied as pellets to gas sensors, semiconductors, and secondary batteries for its properties. Thus, research on molybdenum dioxide compaction and pressureless sintering is necessary, yet research on pressureless sintering is currently insufficient. This study synthesized MoO₃ powder via solution combustion synthesis and reduced it using the 3% hydrogen/argon gas mixture to investigate the effect of reduction temperature on the powder. Additionally, the reduced powder was compacted and subjected to pressureless sintering with temperature as a variable. The density and the microstructure of brown parts were analyzed and discussed.

1. Introduction 
2. Experimental 
    2.1. 용액연소합성법을 통한 Mo 산화물 합성 
    2.2. Mo 산화물 산화물의 수소 환원 
    2.3. Mo 산화물 환원 분말의 성형 및 소결 
    2.4. 특성 평가 
3. Results and Discussion 
    3.1. 용액연소합성법으로 합성된 Mo 산화물의 분석 
    3.2. 수소 환원을 통해 합성된 MoO2 분말의 분석 
    3.3. 수소 환원 분말의 성형 및 상압소결 
    3.4. 수소 환원 분말 소결체의 밀도 분석 
4. Conclusion 
Conflict of Interest Declaration  
Author Information and Contribution  
Acknowledgement
References

• 이종훈(단국대학교 에너지공학과) | Jong Hoon Lee (Department of Energy Engineering, Dankook University, Cheonan 31116, Republic of Korea)
• 이근재(단국대학교 에너지공학과) | Kun-Jae Lee (Department of Energy Engineering, Dankook University, Cheonan 31116, Republic of Korea) Corresponding author