C15
Frame ID: C15
Sample ID: Coal Combustion Char
Magnification: As given
Illuminator: Vertical
Objective: 50x oil
Polarizer: In
Analyzer: Out
Retarder Plate: Out
Filter: None
Important Features: Skeletal Char
Description: : The object in the center of the field is a typical skeletal char. It is characterized by its unfused but burnt out nature and high porosity. This char was produced in an entrained flow reactor in nitrogen with a heating rate of 104-105 degrees C per second with a residence time of approximately one second at a maximum temperature of 1000 degrees C.