Effect of sub-minute high temperature heat treatments on the thermal conductivity of carbon-bonded carbon fiber (CBCF) insulation

PDF Version Also Available for Download.

Description

The thermal conductivity of carbon-bonded carbon fiber insulation in vacuum was determined before and after short duration heat treatments to model the effect of varying degrees of graphitization. Specimens of the insulation were heat-treated for 10, 15 and 20 seconds at 2673, 2873, 3073, and 3273 K. The dimensions and mass of each specimen was recorded before and after heat treatments. The thermal conductivity of the heat treated specimens was measured as a function of temperature up to 2273 K. These data are compared with previously measured specimens heat treated at the same temperatures for 1 minute and one sample ... continued below

Physical Description

13 p.

Creation Information

Dinwiddie, R.B.; Nelson, G.E. & Weaver, C.E. December 31, 1995.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Sponsor

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

The thermal conductivity of carbon-bonded carbon fiber insulation in vacuum was determined before and after short duration heat treatments to model the effect of varying degrees of graphitization. Specimens of the insulation were heat-treated for 10, 15 and 20 seconds at 2673, 2873, 3073, and 3273 K. The dimensions and mass of each specimen was recorded before and after heat treatments. The thermal conductivity of the heat treated specimens was measured as a function of temperature up to 2273 K. These data are compared with previously measured specimens heat treated at the same temperatures for 1 minute and one sample heat-treated at 3273 K for 1 h. The thermal conductivity increases with both the heat treatment temperature and time at temperature. The thermal conductivity data has been modeled to obtain equations that predict the thermal conductivity of the insulation as a function of temperature (673 K {le} T {le} 3773 K) and heat treatment conditions of time (0 {le} t {le} 20 s) and temperature (2673 K to 3773 K).

Physical Description

13 p.

Notes

OSTI as DE96008666

Source

  • 23. international thermal conductivity conference, Nashville, TN (United States), 29 Oct - 1 Nov 1995

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Other: DE96008666
  • Report No.: CONF-9510111--3
  • Grant Number: AC05-96OR22464
  • DOI: 10.2172/216284 | External Link
  • Office of Scientific & Technical Information Report Number: 216284
  • Archival Resource Key: ark:/67531/metadc673309

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • December 31, 1995

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

Description Last Updated

  • Jan. 19, 2016, 12:58 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 4

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Dinwiddie, R.B.; Nelson, G.E. & Weaver, C.E. Effect of sub-minute high temperature heat treatments on the thermal conductivity of carbon-bonded carbon fiber (CBCF) insulation, report, December 31, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc673309/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.