BOTTOM-POUR RE-USABLE MELTING CRUCIBLES FOR PLUTONIUM CASTING
Abstract
24p. Bottom-pour Ta and CaF/sub 2/-coated steel melt crucibles for Pu and Pu-rich alloys were developed. The controlled pour is effected by melting a Pu plug in the bottom spout of the crucible after the desired temperature and vacuum conditions are obtained. A description is given of the development of the crucibles which have replaced ceramic crucibles for casting work on the kilogram scale. (auth)
- Authors:
- Publication Date:
- Research Org.:
- Los Alamos Scientific Lab., N. Mex.
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 4059433
- Report Number(s):
- LA-2480
- NSA Number:
- NSA-15-014678
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- United States
- Language:
- English
- Subject:
- METALS, CERAMICS, AND OTHER MATERIALS; CALCIUM FLUORIDES; CASTING; COATING; CRUCIBLES; MELTING; PLUTONIUM; PLUTONIUM ALLOYS; STEELS; TANTALUM; VACUUM
Citation Formats
Miley, F., and Anderson, J.W.. BOTTOM-POUR RE-USABLE MELTING CRUCIBLES FOR PLUTONIUM CASTING. United States: N. p., 1960.
Web. doi:10.2172/4059433.
Miley, F., & Anderson, J.W.. BOTTOM-POUR RE-USABLE MELTING CRUCIBLES FOR PLUTONIUM CASTING. United States. doi:10.2172/4059433.
Miley, F., and Anderson, J.W.. Sat .
"BOTTOM-POUR RE-USABLE MELTING CRUCIBLES FOR PLUTONIUM CASTING". United States.
doi:10.2172/4059433. https://www.osti.gov/servlets/purl/4059433.
@article{osti_4059433,
title = {BOTTOM-POUR RE-USABLE MELTING CRUCIBLES FOR PLUTONIUM CASTING},
author = {Miley, F. and Anderson, J.W.},
abstractNote = {24p. Bottom-pour Ta and CaF/sub 2/-coated steel melt crucibles for Pu and Pu-rich alloys were developed. The controlled pour is effected by melting a Pu plug in the bottom spout of the crucible after the desired temperature and vacuum conditions are obtained. A description is given of the development of the crucibles which have replaced ceramic crucibles for casting work on the kilogram scale. (auth)},
doi = {10.2172/4059433},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Oct 01 00:00:00 EDT 1960},
month = {Sat Oct 01 00:00:00 EDT 1960}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
-
Directly susceptible Tribocor 532N crucibles for noncarbon uranium melting and casting
A new material, Tribocor 532N (an alloy of 50 wt % niobium-30 wt % titanium-20 wt % tungsten (50Nb-30Ti-20W) nitrided at >1800/degree/C), has been shown to be an excellent crucible/susceptor for melting and casting uranium and its alloys in a noncarbon environment. Testing has progressed from very small-scale initial tests to intermediate-scale foundry tests with performance better than graphite containment. Lifetime tests of Tribocor 532N indicate an improvement of more than an order of magnitude as compared to graphite. The Tribocor 532N is far superior to oxide-based ceramics and experiences no cracking from thermal cycling, is capable of directly susceptingmore » -
THE MELTING AND CASTING OF URANIUM IN SULFIDE CRUCIBLES
Uranium was successfully cast at temperatures as high as 1900 to 2000 deg C in crucibles made from CeS, CeS/sub 1.38/, ThS, ThS/sub 1.75/, and ThU/sub 0.7/S/sub 2/ with the sulfur pickup in all cases less than 0.15 wt.%, in some cases at low temperatures being less than 0.005%. A summary of actual sulfur absorption for different experimental temperatures and crucible types is given. The effect of the molten mixture of U and UBr/sub 3/(Br/U =2) upon some sulfide refractories was investigated. The results indicate that only ThS/sub 2/ and divalent sulfides like ThUS/sub 2/, US, ThS, etc., would withstandmore » -
Crucible Handbook: A Compilation Of Data On Crucibles Used For Calcining, Sintering, Melting, And Casting
Personnel in the atomic energy program are confronted at times with an immediate need for information concerning the properties of commercially available nonmetallic crucibles. Some of the information is unavailable to the casual worker, and the published portion is widely scattered throughout the literature. Since nonmetallic crucibles are usually ceramic, the ORNL Ceramic group felt that a valuable contribution could be made by compiling information from both published and unpublished sources in a form that would enable the casual worker to ascertain readily the type of crucible best suited to his needs and to find a source of supply onmore »