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Title: Reusable crucible for containing corrosive liquids

Patent ·
OSTI ID:869717
 [1]
+ Show Author Affiliations
  1. (Livermore, CA)

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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
DOE Contract Number:
W-7405-ENG-48
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 5383981
OSTI ID:
869717
Country of Publication:
United States
Language:
English

References (5)

Thermodynamics and phase relations in refractory metal solid solutions containing carbon, nitrogen, and oxygen journal July 1972
The high-temperature solid solubility limit of carbon in tantalum journal January 1965
High-Temperature Interactions off Refractory Metals with Gases journal October 1988
Group IVa and Va transition metal interactions with carbon and hydrocarbons I: Thermodynamics of formation of carbon solid solutions and carbides — kinetics and mechanisms of carburization in hydrocarbons, and the influence of oxygen or nitrogen dopants journal July 1984
Phase boundary motion and polyphase diffusion in binary metal-interstitial systems journal February 1968

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Related Subjects

reusable
crucible
containing
corrosive
liquids
non-wetting
corrosion-resistant
material
suitable
containment
formed
tantalum
alloy
substrate
permeated
carbon
atoms
carburized
form
surface
layers
tac
heated
temperature
vacuum
carbide
diffuse
throughout
solid
solution
randomly
interspersed
lattice
resistant material
material suitable
tantalum alloy
carbon atoms
surface layer
solid solution
carbon atom
surface layers
alloy substrate
corrosion-resistant material
carbide layers
corrosive liquids
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