NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 29 of 6554
Measurement of dihedral angles by scanning electron microscopy.
Author and Affiliation:
Achutaramayya, G.
Scott, W. D.(Washington, University, Seattle, Wash., United States)
Abstract: The extension of Hoover's (1971) technique to the case of dihedral-angle measurement is described. Dihedral angles are often determined by interferometry on thermally grooved grain boundaries to obtain information on relative interfacial energies. In the technique considered the measured angles approach the true angles as the tilt angle approaches 90 deg. It is pointed out that the scanning electron microscopy method provides a means of seeing the real root of a groove at a lateral magnification which is higher than that obtainable with interferometry.
Publication Date: Apr 01, 1973
Document ID:
19730044133
(Acquired Dec 04, 1995)
Accession Number: 73A28935
Subject Category: INSTRUMENTATION AND PHOTOGRAPHY
Document Type: Journal Article
Publication Information: American Ceramic Society; vol. 56
Publisher Information: United States
Contract/Grant/Task Num: NGL-48-002-004
Financial Sponsor: NASA; United States
Description: 2p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CRYSTAL SURFACES; DIHEDRAL ANGLE; ELECTRON MICROSCOPES; GRAIN BOUNDARIES; SCANNING ELECTRON MICROSCOPY; CONTAMINATION; CRYSTAL OPTICS; ELECTRON BEAMS; GROOVES; INTERFACIAL ENERGY; INTERFEROMETRY; ROOTS; SCANNERS; TEMPERATURE EFFECTS; TOPOGRAPHY; VACUUM DEPOSITION
Imprint And Other Notes: American Ceramic Society, Journal, vol. 56, Apr. 1973, p. 230, 231.
Miscellaneous Notes: Apr. 1973, p. 230, 231
Availability Source: Other Sources
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: August 12, 2011
Contact Us