Changes in Morphology Caused by Mass Transfer Phenomenon
Year: 2025
Type: article
Abstract: The mass transfer phenomenon causes a lot of morphological changes. Heat-resistance of ceramic fibers can be classified in this category. Third generation SiC polycrystalline fibers demonstrated excellent heat resistance. However, at temperatures above 1800℃, sintered fiber (Tyranno SA) and non-sintered fiber (Hi-Nicalon Type S) show remarkable differences in heat resistance. At temperatures above 1800℃, the non-sintered fiber underwent scared structural changes, including the formation of a surface carbon layer and abnormal SiC grain growth, whereas the sintered fiber maintained its stable polycrystalline structure. Here, we explained the dramatic differences in heat resistance that occurred at high temperatures in relation to a mass transfer of excess carbon. Our findings should be widely used for the development of a much more stable structure and long-term use of materials at higher temperatures in applications such as airplane engines and turbines.
Source: Ceramics
Author: Toshihiro Ishikawa
Institutions: Tokyo University of Science, Sanyo-Onoda City University
Language: English
Subfield: Ceramics and Composites
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,930
OpenAlex ID: W4414475020