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Title: 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.
Inventors:
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

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