Published June 18, 2007
| Version v1
Journal article
Observations of nanoporous foam arising from impact and rapid solidification of molten Ni droplets
- 1. Center for Thermal Spray Research, Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275 (United States)
Description
The authors report highly nanoporous surfaces on the underside of impacted, rapidly quenched Ni droplets (splats) removed from substrates. The formation mechanism is interpreted as nucleation of gas bubbles during rapid postimpact depressurization, and subsequent freezing to a porous solid. Good agreement is found between experimental observations and predictions from bubble nucleation theory. Results from experimental variations suggest the potential for control of pore size and distribution
Additional details
Identifiers
- DOI
- 10.1063/1.2749183;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 90
- Journal Issue
- 25
- Journal Page Range
- p. 254101-254101.3
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39001296
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S36: MATERIALS SCIENCE;
- Descriptors DEI
- BUBBLES; DEPRESSURIZATION; DROPLETS; FOAMS; FREEZING; NICKEL; NUCLEATION; POROSITY; POROUS MATERIALS; SOLIDIFICATION; SUBSTRATES
- Descriptors DEC
- COLLOIDS; DISPERSIONS; ELEMENTS; MATERIALS; METALS; PARTICLES; PHASE TRANSFORMATIONS; TRANSITION ELEMENTS
Optional Information
- Notes
- (c) 2007 American Institute of Physics