Reusable crucible for containing corrosive liquids

Patent · Tue Jan 24 00:00:00 EST 1995

OSTI ID:6622505

Pruneda, J A.H. de.

A reusable, non-wetting, corrosion-resistant material suitable for containment of corrosive liquids is formed of a tantalum or tantalum alloy substrate that is permeated with carbon atoms. The substrate is carburized to form surface layers of TaC and Ta[sub 2]C, and then is heated at high temperature under vacuum until the carbon atoms in the carbide layers diffuse throughout the substrate to form a solid solution of carbon atoms randomly interspersed in the tantalum or tantalum alloy lattice. 10 figures.

• DOE Contract Number: W-7405-ENG-48
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 5383981; A
• Application Number: PPN: US 8-076061
• OSTI ID: 6622505
• Resource Relation: Patent File Date: 14 Jun 1993
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TANTALUM CARBIDES
CORROSION RESISTANCE
FABRICATION
CARBURIZATION
CONTAINERS
DIFFUSION
HEAT TREATMENTS
CARBIDES
CARBON COMPOUNDS
HARDENING
REFRACTORY METAL COMPOUNDS
SURFACE HARDENING
SURFACE TREATMENTS
TANTALUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360205 - Ceramics
Cermets
& Refractories- Corrosion & Erosion