TERMIUM Plus®

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MICROFISSURATION [4 records]

Record 1 1994-09-12

English

Subject field(s)
  • Types of Concrete
CONT

Microcracking of concrete can be estimated by observing under microscope polished sections impregnated with a colour dye.

French

Domaine(s)
  • Sortes de béton
CONT

La microfissuration des bétons est liée à : - différents phénomènes physico-chimiques internes, à savoir sédimentation, contraction Le Chatelier, chaleur d'hydratation, autodessiccation; - des contraintes externes d'origine mécanique.

Spanish

Save record 1

Record 2 1994-09-01

English

Subject field(s)
  • Mining Engineering

French

Domaine(s)
  • Génie minier
DEF

Essai permettant de déterminer le seuil à partir duquel une roche se fragmente en microfissures.

Spanish

Save record 2

Record 3 1990-02-07

English

Subject field(s)
  • Strength of Materials
CONT

Fracture in ceramics is controlled by the direct effect of the microstructure at the crack tip ... Possibilities of improving fracture toughness include random orientation of grains, microfracture, transformation toughening and the addition of fibers.

French

Domaine(s)
  • Résistance des matériaux
CONT

Le renforcement mécanique [de l'alumine par des inclusions de zircone] peut procéder de deux causes principales: une microfissuration diffuse (autour des particules déjà transformées) menant à un accroissement de ténacité par bifurcation, changement de plans, etc, de la fissure qui se propage lors de la rupture (...), une transformation sous contraintes (...)

Spanish

Save record 3

Record 4 1984-06-01

English

Subject field(s)
  • Tracks and Roadways (Rail Transport)
DEF

minute crack in steel, caused by rapid or uneven cooling of rail during manufacture (RDMA 64, p. 32).

French

Domaine(s)
  • Voies ferrées
OBS

Si le refroidissement de l'acier est trop rapide, l'hydrogène dégagé dans la masse ne peut s'éliminer rapidement à l'extérieur. Sa pression partielle augmente et peut atteindre localement une valeur qui provoque une fissuration interne de faible dimension.

OBS

Terme uniformisé par le CN.

Spanish

Save record 4

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