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Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005228
EISBN: 978-1-62708-187-0
.... This article discusses various microgravity solidification experiments that involve pure metals, alloys, and semiconductors and presents the official NASA acronyms for them. MEPHISTO, TEMPUS, the isothermal dendritic growth experiment, and advanced gradient heating facility, are also discussed. crystal...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005522
EISBN: 978-1-62708-197-9
... microgravity solidification thermophysical properties FOR A WIDE RANGE of new or better products, solidification processing of metallic materials from the melt is a step of uppermost importance in the industrial production chain. Examples of such advanced products include turbine blades for energy...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001465
EISBN: 978-1-62708-173-3
... and dramatic factors are microgravity and high vacuum. Microgravity in earth orbit occurs due to the centrifugal force of the orbiting craft that counters the effects of gravity, making the spacecraft and all orbiting objects, including those within the spacecraft, in continual free fall until a force acts...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005514
EISBN: 978-1-62708-197-9
... undercoolings can be achieved ( Ref 4 ). Measurement of properties in microgravity: This technique uses drop tubes and suborbital (parabolic flights and sounding rockets) and space flights. A number of advantages are claimed, such as the precise control of the surrounding atmosphere, the elimination...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003759
EISBN: 978-1-62708-177-1
... liquid phase sintered at 1507 °C (2745 °F) Normal gravity Microgravity 1 min 120 min 1 min 120 min 3.7 4.3 2.9 2.9 Fig. 34 Normalized 3-D nearest-neighbor distributions of tungsten grain centers in the specimens of W-Ni-Fe alloys under different processing...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005227
EISBN: 978-1-62708-187-0
.... , and Curreri P.A. , Particle Engulfment and Pushing by Solidifying Interfaces, Part I: Microgravity Experiments and Theoretical Analysis , Metall. Mater. Trans. A , Vol 29 , 1998 , p 1697 – 1706 37. Sen S. , Dhindaw B.K. , Catalina A. , Stefanescu D.M. , and Curreri P.A...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005538
EISBN: 978-1-62708-197-9
...,” “Thermophysical Properties,” “Thermophysical Properties of Liquids and Solidification Microstructure Characteristics: Benchmark Data Generated in Microgravity,” “Measurement of Thermophysical Properties at High Temperatures for Liquid, Semisolid, and Solid Commercial Alloys,” “Grain-Boundary Energy...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003760
EISBN: 978-1-62708-177-1
.... Uno and M. Enomoto, Distribution of MnS Particles during Grain Growth of Ferrite, Ibaraki University, 2002 Fig. 22 Typical microstructure of an 83W-11.9Ni-5.1Fe (wt%) alloy specimen, liquid phase sintered at 1780 K for 1 min in a microgravity environment. (a) A montage of 25...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006033
EISBN: 978-1-62708-175-7
... alloy, relying on test data taken on Earth and under microgravity conditions, to then predict the expected shapes for various gravitational conditions: Earth, Moon, Mars, and in space. The results show that gravity affects shape distortion during sintering ( Ref 40 ). Accordingly, the computer...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005502
EISBN: 978-1-62708-197-9
... is thermally softened to a point where the internal sintering stress can induce densification.) Figure 11 shows sintering simulation results for a tungsten heavy alloy, relying on test data taken on Earth and under microgravity conditions, to then predict the expected shapes for various gravitational...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005240
EISBN: 978-1-62708-187-0
... Measurements of Liquid Metals Using Levitation, Microgravity, and Image Processing , Int. J. Thermophys. , Vol 13 ( No. 1 ), 1992 , p 65 – 74 36. Bayazitoglu Y. and Mitchell G.F. , Experiments in Acoustic Levitation: Surface Tension Measurements of Deformed Droplets , J. Thermophys...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005523
EISBN: 978-1-62708-197-9
... and Viscosity of a Levitated Drop, Report of National Aeronautics and Space Administration Contract NASA 7–918 , 1996 , p 1 – 6 33. Egry I. , Lohofer G. , Neuhaus P. , and Sauerland S. , Surface Tension Measurements of Liquid Metals Using Levitation, Microgravity, and Image...