Title

Research And Development On Advanced Graphite Materials. Volume XXI - Carbon Arc Image Furnace Studies Of Graphite

Date

1963

Index Abstract

Contrails and DTIC

Photo Quality

Incomplete

Report Number

WADD TR 61-72 Volume 21

Creator

Null, M. R.

Lozier, W. W.

Corporate Author

Research Laboratory, National Carbon Company, Division of Union Carbide Corporation

Laboratory

AF Materials Laboratory

Extent

64

Identifier

AD0426665

AD0426665

Access Rights

OTS

Distribution Classification

1

Contract

AF 33(616)-6915

DoD Project

7350

DoD Task

735002

DTIC Record Exists

Yes

Distribution Change Authority Correspondence

None

Report Availability

Full text available

Date Issued

1963-11

Abstract

Measurements obtained using a carbon arc image furnace indicate that the spectral reflectance and emissivity of carbon and graphite samples in the visible region of the spectrum are strongly dependent on surface finish, but are independent of temperature to at least 3000°K, regard less of surface finish. Discrepancies with other measurements of emissivity are indicated to be caused by errors in the measurement of surface temperature, due to thermal gradients.

Information has been obtained with the carbon arc image furnace indicating that the thermal conductivity of surface material depends strongly on surface finish and is smaller than the conductivity of substrate material.

Subject

Carbon

Reflection

Heating

Laboratory Furnaces

Sublimation

Oxidation

Publisher

Wright-Patterson Air Force Base, OH : AF Materials Laboratory, Aeronautical Systems Division, Air Force Systems Command

Distribution Conflict

No

Provenance

IIT

Type

report

Format

1 online resource