(v. t.) Any combination or compound of metals fused together; a mixture of metals; for example, brass, which is an alloy of copper and zinc. But when mercury is one of the metals, the compound is called an amalgam.
(v. t.) The quality, or comparative purity, of gold or silver; fineness.
(v. t.) A baser metal mixed with a finer.
(v. t.) Admixture of anything which lessens the value or detracts from; as, no happiness is without alloy.
(v. t.) To reduce the purity of by mixing with a less valuable substance; as, to alloy gold with silver or copper, or silver with copper.
(v. t.) To mix, as metals, so as to form a compound.
(v. t.) To abate, impair, or debase by mixture; to allay; as, to alloy pleasure with misfortunes.
(v. t.) To form a metallic compound.
Example Sentences:
(1) Sulphides, which possibly form on silver alloys, showed cytotoxicity.
(2) The influence of mucin on the corrosion behaviour of seven typical dental casting alloys was investigated.
(3) Tests were undertaken to study resistance to tears in laser welded dental metal alloys.
(4) Increased wear-resistance of microsurgical instruments by facing, electric spark alloying and vacuum surfacing increases the working life of the instruments by 1.5-3 times.
(5) Pitting corrosion was seen on low-resistant Ni-Cr alloys, which had less Cr content.
(6) One alloy tested contained 5% indium, and the second alloy contained 10% indium.
(7) Such failures can easily be avoided by using only one alloy with good passivation characteristics instead of different alloys.
(8) The investment containing 2.0 wt% NbC showed nearly the same casting accuracy for Ni-Cr alloys for metal-ceramic restoration as the commercial phosphate-bonded investment.
(9) It was determined that the Ag-rich phase of Ag-Pd-Cu-Au alloy was preferentially attacked to form Ag2S corrosion product.
(10) The current literature, for the most part, cites the use of noble alloys as controls for trials of alternative materials.
(11) Titanium-nickel alloy composed of 50% by weight of each metal has unique thermal shape-memory properties, with a transition temperature of 20 degrees C. Each stent consists of one wire with a diameter of 0.9 mm.
(12) Irrespective of the coated dental alloy, the coatings have pores, through which the electrolyte is in contact with the substrate material.
(13) Forty BIAS femoral stems had heads made of Co-base F 75 alloy and 18 Gustilo-Kyle femoral stems had Ti6A14V alloy heads.
(14) The occurrence of marginal spaces between the resin facing and gold alloy framework in 176 crowns and bridge retainers was studied.
(15) Base metal alloys, principally made of nickel, chromium, and beryllium have gained widespread usage, especially in the United States, due to their lower cost and higher mechanical properties.
(16) The amounts of polyethylene and methylmethacrylate debris and the histological reactions in the tissues corresponded closely with those reported in earlier studies of total hip prostheses made of stainless steel or cobalt-chromium alloy.
(17) The bond strength of the specimens brazed with the non-precious alloy was largely unaffected.
(18) The traditional alloys used as metal bases for fixed partial dentures are accompanied by various problems such as corrosion, allergy, toxicity, casting, and preparation for both patient and prosthodontist and in magnetic resonance imaging for diagnosis.
(19) The results revealed that experimental alloys inherited high early and final strength values without any significant change in their microstructure.
(20) The surface of dental alloys, on which such a composite plating was made, was analyzed by ESCA.
Carbide
Definition:
(n.) A binary compound of carbon with some other element or radical, in which the carbon plays the part of a negative; -- formerly termed carburet.
Example Sentences:
(1) The uptake of cobalt by macrophages in the presence of tungsten carbide was found to be increased.
(2) A previous study from this laboratory, using morphological and biochemical (LDH release) parameters, has shown that tungsten carbide-cobalt dust exhibits a greater cytotoxicity toward isolated macrophages than cobalt metal powder alone.
(3) Acceptable finishing procedures for the composite materials tested include silicon carbide disks for accessible areas or 12 fluted finishing burs for more inaccessible areas.
(4) A cross-sectional study of 1,039 tungsten carbide (TC) production workers was carried out.
(5) Experimental measurements have been made of the ultrasonic velocity and attenuation in some simple suspensions of, mainly, silicon carbide in water and in ethylene glycol.
(6) Method 4 comprised a green stone, a carbide finishing bur, and the Vivadent polisher for composite.
(7) It was considered that foreign bodies were composed of carbon steel, steel alloy, and tungsten carbide.
(8) A titanium nitride coating has been deposited on steel and tungsten carbide dental rotary instruments.
(9) On stimulation of the lungs with an inert dust (silicon carbide), the AM count in the BAL and the lung was only slightly increased 8 weeks after intratracheal instillation.
(10) The results showed that the high speed finishing technique by twelve and thirty fluted carbide burs and final polishing with Command Ultrafine Luster Paste produces the smoothest and flatest surface of HERCULITE XR.
(11) Workers in the silicon carbide industry have experienced occupational health diseases, particularly lung disorders such as silicosis.
(12) Finishing with the aid of properly formed diamond stones or tungsten-carbide finishers in the normal speed range 6.
(13) To investigate this, we analyzed pairs of chest radiographs obtained in 1977 and 1984 in 128 silicon carbide plant workers.
(14) For forty years, cases of interstitial pneumonia and bronchial asthma have been described in hard metal workers (i.e., alloys of tungsten carbide and cobalt).
(15) Para-tertiary butylphenol [(PTBP); the Union Carbide Corporation trademark for this chemical is UCAR Butylphenol 4-T Flake] has applications as a raw material in the manufacture of resins and also as an industrial intermediate.
(16) We have previously demonstrated that tungsten carbide-cobalt powder (WC-Co) is more toxic toward murine macrophages in vitro than pure cobalt metal particles and that the cellular uptake of cobalt is enhanced when the metal is present in the form of WC-Co mixture.
(17) Fifty extracted maxillary central incisors were mounted in cups and the facial surfaces of the crowns were polished on 600-grit silicon carbide paper.
(18) The pulpal perforations were treated by partial pulpotomy with a tungsten carbide fissure bur after exposure for 4, 48, or 168 hours in nine animals, and by direct pulp capping after exposure for 4 or 48 hours in the remaining four animals.
(19) There the combination of a preparing diamond cutter with a tungsten carbide finisher proved a success both relating to profiles of enamel bevel after acid etching, small disturbed enamel structure and as to clinical handling.
(20) These observations add further evidence to our previous findings regarding the different biological reactivity of cobalt metal alone or mixed with tungsten carbide.