Pb-Sn alloy의 열분석을 통한 Phase Diagram(DTA, DSC, TGA, Cooling curve이용)

소개

아주대학교 화공신소재공학부 2학년 2학기 과목인
`재료공학실험1` 중 Pb-Sn alloy의 열분석을 통한 Phase Diagram를 그려서
문헌의 것과 실험결과를 비교, 분석, 고찰한 Report입니다.
실험 방법은 총 4가지이고, DTA, DSC, TGA, Cooling curve입니다.
또한 실험에서 세부적으로 합금 조성을 달리하여, 상변태 온도를 각 실험의
결과로부터 알아내어 Phase diagram을 그렸습니다.
2010년 12월에 작성한 최근 Report이고 A+받은 리포트입니다.
여러분들에게 큰 도움이 되었으면 좋겠습니다.

목차

1. Introduction
2. The consideration of theory
2.1. Thermocouple
2.2. DTA(Differential Thermal Analysis)
2.3. DSC(Differential Scanning Calorimetry)
3. Experimental procedure
4. Results and Discussion
5. Conclusion
6. Reference

본문내용

1. Introduction
Thermal analysis is a branch of material science where the properties of materials are studied as they change with temperature. Several methods are commonly used - these are distinguished from one another by the property which is measured.

DTA(Differential Thermal Analysis) : Measuring the temperature difference against a standard sample.
DSC(Differential Scanning Calorimetry) : Measuring heat input or output to maintain the same temperature as the standard sample.
TGA(Thermogravimetric Analysis) : Measuring mass change.
DIL(Dilatometry) : Measuring volume or dimension change with temperature.

Thermal analysis is applied to constructing of phase diagrams, measuring thermodynamic properties and enthalpy change, identifying reactions, transformations, gas evolution and so on.
In our experiment, I made the phase diagram using cooling curve by measuring of temperature using thermocouple and using TGA, DTA, DSC.

참고자료

· Foundations of Materials Science and Engineering, 4th Edition, William F. Smith, Javad Hashemi, McGrawHill, p.326~333.