논문 상세보기
pp.597-602
In this study, foamed glass was fabricated by adjusting the final heat treatment temperature. The heat treatment temperatures ranged from 900 °C to 1,100 °C at 50 °C intervals. Blast furnace slag (BFS) powder was mixed with foaming agent such as CaCO3, Ca3(PO4)2, Na2SiO3 and NaOH, pressed under compression, then heat treated to form a porous and stable glass structure. Their optical, thermal, and physical properties, including thermal coefficient, density, glass transition temperature (Tg) and X-ray diffraction patterns, were investigated. As the heat treatment temperature increased, the apparent density decreased from 1.44 g/cm3 to 1.03 g/cm3 while the porosity increased from 46.03 % to 58.89 %. Thermal coefficient decreased from 9.997 × 10-6 /K to 9.417 × 10-6 /K. The main XRD peak gradually shifted toward a lower angle, indicating an expansion of the glass network structure. Results showed that foamed glass based on BFS, developed with a porous structure, can be used as an effective thermal insulation material, suggesting the potential for the commercial utilization of slag.
1. 서 론
2. 실험 방법
3. 결과 및 고찰
3.1. 고로 슬래그 발포유리의 특성
3.2. 고로 슬래그 발포유리의 열적 특성
3.3. 고로 슬래그 발포유리의 밀도 및 기공 결과
3.4. 고로 슬래그 발포유리의 열전도도 결과
3.5. 고로 슬래그 발포유리의 구조적 분석
3.6. 고로 슬래그 발포유리의 열팽창 결과
4. 결 론
Acknowledgement
References
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