Reusable crucible for containing corrosive liquids
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.
- Issue Date:
- OSTI Identifier:
- 6622505
- Assignee:
- Dept. of Energy, Washington, DC (United States) PTO; EDB-95-029504
- Patent Number(s):
- US 5383981; A
- Application Number:
- PPN: US 8-076061
- Contract Number:
- W-7405-ENG-48
- Resource Relation:
- Patent File Date: 14 Jun 1993
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 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