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case hardening (rock surface change) (surface or structural changes, condition changing (processes), ... Processes and Techniques (hierarchy name)) |
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Note: Describes a process of weathering in which the outer shell of rock becomes more resistant to erosion than its interior. Case hardening occurs by strengthening the exterior shell of the rock or by weakening of the rock's interior. In materials such as sandstone a greater accumulation of cements holding individual grains together at the surface causes shell strengthening. Case hardening in crystalline rock takes place when bonds are broken in the interior through chemical weathering.
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| Terms: |
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| case hardening (rock surface change) (preferred,C,U,English-P,D,U,VN)
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| case-hardening (rock surface change) (C,U,English,UF,U,U)
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| case hardened (rock surface change) (C,U,English,AD,U,PP)
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| case harden (rock surface change) (C,U,English,UF,U,U)
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| induration (C,U,English,UF,U,U)
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Facet/Hierarchy Code: K.KT |
Hierarchical Position:
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Activities Facet |
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.... Processes and Techniques (hierarchy name) (G) |
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........ <processes and techniques by specific type> (G) |
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............ condition changing (processes) (G) |
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................ surface or structural changes (G) |
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.................... case hardening (rock surface change) (G) |
Related concepts: |
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| distinguished from .... |
case-hardening (steel hardening) |
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(surface hardening, <metal finishing processes and techniques>, ... Processes and Techniques (hierarchy name)) [300054028] |
| involves .... |
rock (inorganic material) |
| ................ |
(inorganic material, <materials by composition>, ... Materials (hierarchy name)) [300011692] |
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