Matches in SemOpenAlex for { <https://semopenalex.org/work/W1978207898> ?p ?o ?g. }
Showing items 1 to 77 of
77
with 100 items per page.
- W1978207898 endingPage "11" @default.
- W1978207898 startingPage "5" @default.
- W1978207898 abstract "We investigate the role of gravity in a linear stability analysis of the onset of coupled convective and morphological instabilities during directional solidification at constant velocity of a dilute alloy of tin in lead. For solidification vertically upwards, the temperature gradient alone would cause a negative density gradient and the solute gradient alone would cause a positive density gradient. Two types of instability are found, a convective type that occurs for long wavelengths and a morphological type that occurs for short wavelengths. In general, these are coupled but the morphological instabilities are practically independent of gravity and thus correspond to the predictions of previous morphological stability theory in which density changes and convection are neglected. The convective instabilities depend strongly on gravity; for a growth velocity of V = 1 μm/s and a temperature gradient in the liquid of GL = 200 K/cm, the critical concentrations for convective instabilities are 3.1 × 10−4, 3.1 × 10−2 and 2.39 wt. % for ge = 980 cm/s2, 10−4 ge and 10−6 ge, respectively. For low velocities, the convective instabilities occur at much lower solute concentrations than the morphological instabilities whereas at high velocities, the reverse is true. At intermediate velocities where the changeover takes place, there are oscillitory instabilities of mixed character whose periods range from 60 s at ge to 6 × 104 s at 10−6 ge." @default.
- W1978207898 created "2016-06-24" @default.
- W1978207898 creator A5021224080 @default.
- W1978207898 creator A5022910600 @default.
- W1978207898 creator A5039336322 @default.
- W1978207898 creator A5091833790 @default.
- W1978207898 date "1981-01-01" @default.
- W1978207898 modified "2023-09-27" @default.
- W1978207898 title "Effect of gravity on coupled convective and interfacial instabilities during directional solidification" @default.
- W1978207898 cites W1577697271 @default.
- W1978207898 cites W2043640793 @default.
- W1978207898 cites W2080477605 @default.
- W1978207898 doi "https://doi.org/10.1016/0273-1177(81)90142-3" @default.
- W1978207898 hasPublicationYear "1981" @default.
- W1978207898 type Work @default.
- W1978207898 sameAs 1978207898 @default.
- W1978207898 citedByCount "12" @default.
- W1978207898 countsByYear W19782078982019 @default.
- W1978207898 countsByYear W19782078982021 @default.
- W1978207898 crossrefType "journal-article" @default.
- W1978207898 hasAuthorship W1978207898A5021224080 @default.
- W1978207898 hasAuthorship W1978207898A5022910600 @default.
- W1978207898 hasAuthorship W1978207898A5039336322 @default.
- W1978207898 hasAuthorship W1978207898A5091833790 @default.
- W1978207898 hasConcept C10899652 @default.
- W1978207898 hasConcept C120665830 @default.
- W1978207898 hasConcept C121332964 @default.
- W1978207898 hasConcept C136590016 @default.
- W1978207898 hasConcept C137109543 @default.
- W1978207898 hasConcept C153294291 @default.
- W1978207898 hasConcept C155491033 @default.
- W1978207898 hasConcept C159985019 @default.
- W1978207898 hasConcept C192562407 @default.
- W1978207898 hasConcept C207821765 @default.
- W1978207898 hasConcept C2778892434 @default.
- W1978207898 hasConcept C2779856285 @default.
- W1978207898 hasConcept C2780026712 @default.
- W1978207898 hasConcept C57879066 @default.
- W1978207898 hasConcept C62520636 @default.
- W1978207898 hasConcept C6260449 @default.
- W1978207898 hasConceptScore W1978207898C10899652 @default.
- W1978207898 hasConceptScore W1978207898C120665830 @default.
- W1978207898 hasConceptScore W1978207898C121332964 @default.
- W1978207898 hasConceptScore W1978207898C136590016 @default.
- W1978207898 hasConceptScore W1978207898C137109543 @default.
- W1978207898 hasConceptScore W1978207898C153294291 @default.
- W1978207898 hasConceptScore W1978207898C155491033 @default.
- W1978207898 hasConceptScore W1978207898C159985019 @default.
- W1978207898 hasConceptScore W1978207898C192562407 @default.
- W1978207898 hasConceptScore W1978207898C207821765 @default.
- W1978207898 hasConceptScore W1978207898C2778892434 @default.
- W1978207898 hasConceptScore W1978207898C2779856285 @default.
- W1978207898 hasConceptScore W1978207898C2780026712 @default.
- W1978207898 hasConceptScore W1978207898C57879066 @default.
- W1978207898 hasConceptScore W1978207898C62520636 @default.
- W1978207898 hasConceptScore W1978207898C6260449 @default.
- W1978207898 hasIssue "5" @default.
- W1978207898 hasLocation W19782078981 @default.
- W1978207898 hasOpenAccess W1978207898 @default.
- W1978207898 hasPrimaryLocation W19782078981 @default.
- W1978207898 hasRelatedWork W1977866736 @default.
- W1978207898 hasRelatedWork W2022856844 @default.
- W1978207898 hasRelatedWork W2038608768 @default.
- W1978207898 hasRelatedWork W2046228234 @default.
- W1978207898 hasRelatedWork W2086604125 @default.
- W1978207898 hasRelatedWork W2100247225 @default.
- W1978207898 hasRelatedWork W2106001004 @default.
- W1978207898 hasRelatedWork W2183742982 @default.
- W1978207898 hasRelatedWork W2313730140 @default.
- W1978207898 hasRelatedWork W2623131101 @default.
- W1978207898 hasVolume "1" @default.
- W1978207898 isParatext "false" @default.
- W1978207898 isRetracted "false" @default.
- W1978207898 magId "1978207898" @default.
- W1978207898 workType "article" @default.