|
|
|
Description:
- Measures thermal conductivity of solid bulk .
- Sample conductivity measured under vacuum with sample
placed between two isolated thermal references forming thermally
insulated columns to eliminate conductive losses.
- Two end references heated to different temperatures.
- Thermal conductivity calculated by measuring thermal
gradient through sample.
![[horizontal rule]](../images/rule.gif)
Features:
- Temperature control of two end references for 50 to 1000
degrees C.
- Bell jar uses mechanical roughing pump providing 10-3
Torr vacuum level.
- Measurement accuracy within 20 percent.
Research Projects:
- Measures thermal conductivity of graphite composites and
LiF, used as thermal storage material in solar dynamic power systems.
Potential Uses
- Estimating defect quantity, development, and heating in
carbon composites.
|
![[GRC Hanger link to Glenn Research Center Home Page]](../images/hangarsm.jpg)
![[NASA Logo link to NASA national site]](../plateimg/top_left_globe.gif)
![[horizontal rule]](file:///W:/epbranch/images/rule.gif){kind=small}