About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
12th International Symposium on High Temperature Metallurgical Processing
|
Presentation Title |
Microstructural Evolution of Thermal Insulation Materials Prepared by Sintering of Ferronickel Slag and Fly Ash Cenosphere |
Author(s) |
Guangyan Zhu, Zhiwei Peng, Lei Yang, Wenxing Shang, Mingjun Rao |
On-Site Speaker (Planned) |
Guangyan Zhu |
Abstract Scope |
The annual output of ferronickel slag in China has reached 40 million tons, causing serious threat to the environment. In this study, based on the process of preparing lightweight thermal insulation materials from ferronickel slag in the presence of fly ash cenosphere(FAC), the influence of addition of FAC on the microstructural evolution and on the heat transfer performance of the resulting thermal insulation materials was investigated. When the addition of FAC increased from 0 to 25 wt%, the product porosity increased rapidly. As it increased further to 35 wt%, a large number of perforative holes were formed in the material and the porosity reached the highest (46.8%), contributing to the lowest the thermal conductivity of the material, namely 0.28 W/(m K). |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Temperature Materials, |