TERMIUM Plus^®

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... a shield that evaporates when heated, thereby absorbing thermal energy and protecting the underlying structure from heat damage.  5, record 1, English, - ablative%20shield

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The heat shield is one of the most critical elements of the Orion spacecraft, protecting Orion and the astronauts as they enter Earth's atmosphere ... Measuring 16.5 feet in diameter, it's the largest ablative heat shield in the world. The outer surface is made of blocks of an ablative material called Avcoat, a reformulated version of the material used on the Apollo capsules. During descent, the Avcoat ablates, or burns off in a controlled fashion, transporting heat away from Orion.  6, record 1, English, - ablative%20shield

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To protect the Apollo command module from the extreme heat of reentry, NASA chose an ablative heat shield composed of a brazed steel honeycomb substructure, a fiberglass honeycomb shell filled with phenolic epoxy resin.  7, record 1, English, - ablative%20shield

Record 1,  Textual support,  French

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Bouclier thermique dont les éléments principaux sont constitués par des couches réfractaires de haute résistance, réalisées à base de matériaux céramiques ou de matières organiques contenant diverses charges.  2, record 1, French, - bouclier%20ablatif

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Ces matériaux s'échauffent au cours du vol jusqu'à la température de fusion, de sublimation ou de dissociation moléculaires des constituants, avec perte d'une partie superficielle de leur masse entraînée par l'air extérieur qui balaie la surface.  2, record 1, French, - bouclier%20ablatif

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Un élément indispensable du bouclier est une couche de matériau thermiquement isolant, de faible poids volumique, disposée sous la couche ablative et servant à protéger les pièces de structure et le volume interne de l'engin contre la pénétration de la chaleur.  2, record 1, French, - bouclier%20ablatif

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Los escudos térmicos ablativos están compuestos de materiales especialmente diseñados para soportar y gestionar las altas temperaturas y la fricción durante la reentrada.  1, record 1, Spanish, - escudo%20t%C3%A9rmico%20ablativo

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A WORM [write-once read many times] optical disk [used to write data onto a disk] as marks in the form of holes or pits in a recording layer.  2, record 2, English, - ablative%20optical%20disk

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Ablative coatings are used on spacecraft to protect astronauts from heat during reentry, as well as on missiles and rockets. The particular ablative coatings a painting contractor uses for your building are not much different. An ablative coating typically must be applied at about 1mm thickness, and forms an excellent passive fire protection option for a range of industries, especially oil/gas and power. Some common applications include electrical cables, oil or gas pipes, and other locations at risk for extremely high temperature fires.  1, record 4, English, - ablative%20coating

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Record 5,  Textual support,  English

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A plate in which the laser physically ablates or removes portions of the emulsion during the imaging process.  3, record 5, English, - ablative%20plate

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These plates use layers of ink-repellent silicon on top of the aluminum substrate to define the non-inking portion of the plate. One variation of this technology uses a laser to ablate the silicon from the substrate in the image areas of the plate. Another uses a laser to transfer material from a donor layer to the aluminum substrate.  3, record 5, English, - ablative%20plate

Record 5,  Textual support,  French

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Plaque thermique dont le procédé de gravure soustrait les parties à insoler de la couche superficielle; les particules éliminées par le laser doivent ensuite être nettoyées.  2, record 5, French, - plaque%20ablative

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Les plaques ablatives sont historiquement les premières plaques CTP [système direct de l'ordinateur à la plaque] à base aluminium sans développement [...] Sortie en 2001, l'Anthem est une plaque positive, à écriture négative, le laser venant insoler les zones non imprimables de la plaque. Contrairement à l'Anthem, l'Applause ne nécessite aucun rinçage et peut être transférée directement du CTP à la presse.  3, record 5, French, - plaque%20ablative

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Record 6,  Textual support,  English

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Erodible/ablative paints consist of two components: the paint matrix and the biocide. Seawater movement against ships' hull polishes off the matrix and the biocide leaches out. The leaching rate will not be constant, because the biocide is not even homogeneously dispersed in the paint matrix. Secondly, the solubility of paint matrix and of incorporated biocides may not be identical.  7, record 6, English, - ablative%20antifouling%20paint

Record 6,  Textual support,  French

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Selon l'Association des armateurs allemands, entre 2 et 5 % des navires marchands allemands sont revêtus de peinture antisalissures ablative au cuivre, tous les autres navires étant revêtus de peinture antisalissures au TBT [tributylétain].  1, record 6, French, - peinture%20antisalissures%20ablative

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Un revêtement ablatif fond, «se sacrifie» de manière à protéger le substrat sous-jacent. Il y a au moins deux types de revêtements ablatifs : un premier qui absorbe la chaleur et se consume pour empêcher le substrat sous-jacent de chauffer, et un deuxième qui se consume et emporte avec lui toutes les matières accumulées à la surface. Le premier est utilisé pour protéger les véhicules spatiaux ... et le deuxième sert de revêtement antisalissures sur les bateaux et les navires.  7, record 6, French, - peinture%20antisalissures%20ablative

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A material, especially a coating material, designed to provide thermal protection to a body in a fluid stream through loss of mass.  1, record 7, English, - ablating%20material

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Ablating materials are used on the surfaces of some reentry vehicles to absorb heat by removal of mass, thus blocking the transfer of heat to the rest of the vehicle and maintaining temperatures within design limits. Ablating materials absorb heat by increasing in temperature and changing in chemical or physical state. The heat is carried away from the surface by a loss of mass (liquid or vapor). The departing mass also blocks part of the convective heat transfer to the remaining material in the same manner as transpiration cooling.  1, record 7, English, - ablating%20material

Record 7,  Textual support,  French

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Matériau spécial recouvrant un astronef et qui peut être sacrifié (entraîné, emporté, évaporé) au cours des opérations de rentrée dans l'atmosphère de la Terre. L'énergie cinétique se dissipe et prévient l'échauffement excessif de la structure principale de l'astronef.  1, record 7, French, - mat%C3%A9riau%20d%27ablation

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The removal of tissue by vaporization is called "ablation." During ablation as tissue vaporizes, the position of the tissue surface, where tissue and air meet, moves deeper into the tissue. One is drilling a hole into the tissue. The velocity at which the hole becomes deeper is called the "ablation velocity."  2, record 8, English, - ablation%20velocity

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Le couplage laser-matière, le seuil d'ablation et la vitesse d'ablation vont dépendre du coefficient d'absorption du matériau à la longueur considérée et de ses propriétés thermiques.  2, record 8, French, - vitesse%20d%27ablation

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Cooling of a surface by endothermic vaporisation of an outer protective coating.  3, record 9, English, - ablative%20cooling

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Ablative cooling using materials similar to those employed as heat shields for reentering space vehicles. Rocket chamber liners ... were made of these materials, which absorb and dissipate ... heat as they vaporize.  4, record 9, English, - ablative%20cooling

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Dans le refroidissement par ablation, la paroi de l'éjecteur est formée d'un matériau isolant dont la décomposition très lente produit un film de gaz qui limite le flux de chaleur vers les parois.  2, record 9, French, - refroidissement%20par%20ablation

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Propre à l'ablation.  1, record 10, French, - ablatif

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Record 11,  Textual support,  English

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Description applied to a material that absorbs heat (while part of it is being consumed by heat) through a decomposition process known as pyrolysis, which takes place in the near surface layer exposed to heat. This mechanism essentially provides thermal protection of the subsurface materials and components by sacrificing the surface layer.  2, record 11, English, - ablative%20plastic

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Laser therapy.  1, record 12, English, - ablative%20phototherapy

Record 12,  Textual support,  French

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Source : EMC [Encyclopédie médico-chirurgicale].  1, record 12, French, - photod%C3%A9composition%20ablative

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Les surfaces d'ablation sont des portions (...) du lit océanique appauvries en certaines fractions granulométriques triées et envrainées par le vannage (...) FRSRE, (2), vol. XX, fasc. 1, 1978, 59-94.  1, record 14, French, - surface%20d%27ablation

Record 14,  Textual support,  Spanish