DOI: 10.1557/proc-87-17. Containerless Processing of Undercooled Melts

Containerless Processing of Undercooled Melts

10.1557/proc-87-17

Crossref journal-article

Springer Science and Business Media LLC

MRS Proceedings (297)

Abstract

AbstractContainerless drop tube processing allows for significant levels of liquid undercooling through control of parameters such as sample size, surface coating and cooling rate. A laboratory scale (3m) drop tube has been developed which allows the under-cooling and solidification behavior of powder samples to be eval-uated under low gravity free fall conditions. The level of undercooling obtained in an InSb-Sb eutectic alloy has been eval-uated by comparing the eutectic spacing in drop tube samples with a spacing/undercooling relationship established using thermal analysis techniques. Undercoolings of 0.17 and 0.23 Te were produced by processing under vacuum and He gas conditions respec-tively. Alternatively, the formation of an amorphous phase in a Ni-Nb eutectic alloy indicates that undercooling levels of approximately 500°C were obtained by drop tube processing. The influence of droplet size and gas environment on undercooling behavior in the Ni-Nb eutectic was evaluated through their effect on the amorphous/crystalline phase ratio. To supplement the structural analysis, heat flow modeling has been developed to describe the undercooling history during drop tube processing and the model has been tested experimentally.

Bibliography

Shong, D. S., Graves, J. A., Ujiie, Y., & Perepezko, J. H. (1986). Containerless Processing of Undercooled Melts. MRS Proceedings, 87.

Authors 4

D. S. Shong (first)
J. A. Graves (additional)
Y. Ujiie (additional)
J. H. Perepezko (additional)

References 12 Referenced 7

{'key': 'S1946427400516431_ref002', 'first-page': '56', 'volume-title': 'Rapid Solidification Processing: Principles and Technologies', 'author': 'Perepezko', 'year': '1980'} / Rapid Solidification Processing: Principles and Technologies by Perepezko (1980)
7. Shong D.S. and Perepezko J.H. (to be published)
{'key': 'S1946427400516431_ref006', 'first-page': '212', 'volume-title': 'Viscous Fluid Flow', 'author': 'White', 'year': '1974'} / Viscous Fluid Flow by White (1974)
10.1016/0001-6160(80)90155-8
{'key': 'S1946427400516431_ref004', 'first-page': '74', 'volume-title': 'Metallic Glasses', 'author': 'Chen', 'year': '1976'} / Metallic Glasses by Chen (1976)
10. Robinson M.B. , NASA, TM-78189 (1978).
3. Graves J.A. , NASA Contractor Report No. 175013, Washington DC, 1985.
{'key': 'S1946427400516431_ref005', 'volume-title': 'Proceedings of Symposium on “Rapidly Solidified Crystalline Alloys', 'author': 'Boettinger', 'year': '1985'} / Proceedings of Symposium on “Rapidly Solidified Crystalline Alloys by Boettinger (1985)
10.1080/00107516908204405
{'key': 'S1946427400516431_ref001', 'first-page': '49', 'volume-title': 'Rapidly Solidified Amorphous and Crystalline Alloys', 'author': 'Perepezko', 'year': '1982'} / Rapidly Solidified Amorphous and Crystalline Alloys by Perepezko (1982)
11. Chang Y.A. (private communication).
12. Ujiie Y. , M.S. thesis, University of Wisconsin, 1986.

Dates

Type	When
Created	14 years, 5 months ago (March 6, 2011, 3:56 a.m.)
Deposited	4 years, 6 months ago (Feb. 24, 2021, 2:51 p.m.)
Indexed	4 months, 2 weeks ago (April 10, 2025, 6:31 a.m.)
Issued	39 years, 7 months ago (Jan. 1, 1986)
Published	39 years, 7 months ago (Jan. 1, 1986)
Published Online	14 years, 6 months ago (Feb. 26, 2011)
Published Print	39 years, 7 months ago (Jan. 1, 1986)

Funders 0

None

BibTeX

@article{Shong_1986, title={Containerless Processing of Undercooled Melts}, volume={87}, ISSN={1946-4274}, url={http://dx.doi.org/10.1557/proc-87-17}, DOI={10.1557/proc-87-17}, journal={MRS Proceedings}, publisher={Springer Science and Business Media LLC}, author={Shong, D. S. and Graves, J. A. and Ujiie, Y. and Perepezko, J. H.}, year={1986} }

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