Results 191 to 200 of about 1,652 (235)

Thermal analysis of hydrated calcium aluminates

Journal of Thermal Analysis, 1996
Differential scanning calorimeter (DSC) has been used to study the dehydration characteristics of hydrated calcium aluminates such as CA, CA(2) and C(12)A(7) where C and A stand for CaO and Al2O3 respectively.
Mitra A
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Study of Calcium Aluminate Formation

Advanced Materials Research, 2015
The paper studies phase formation of calcium aluminate prepared by the sol-gel method. The stages of the end products’ formation were proposed using methods of gas chromatography, the thermal and the infrared spectrometric analysis. Dependence of phase composition and the crystalline structure on the annealing temperature of the precursor was revealed.
Selyunina, Liliya A., Mishenina, Lyudmila N.   +1 more
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Liquid Iron Wetting of Calcium Aluminates

ISIJ International, 2010
An investigation has been carried out to assess the wetting behaviour of liquid iron carbon alloys on alumina, CA6 (CaO · 6Al2O3), CA2 (CaO · 2Al2O3) and CA (CaO · Al2O3). The melt compositions studied were 2 and 5 mass% [C] over a temperature range of 1
Brian J Monaghan
exaly   +1 more source

Bioactivity of Calcium Aluminate Endodontic Cement

Journal of Endodontics, 2013
Calcium aluminate endodontic cement (CAEC) developed for use in root canal therapy has been produced with additives that improve handling properties and provide higher mechanical strength than mineral trioxide aggregate (MTA) according to prior studies.
Ivone Regina, Oliveira, Talita L, Andrade, Marcos, Jacobovitz, Victor C, Pandolfelli   +3 more
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Calcium‐phosphate magnesium‐aluminate osteoceramics

Journal of Biomedical Materials Research, 1974
AbstractCeramic materials for permanent implantation in osseous tissue, called osteoceramics, were based on an equimolar mixture of Ca3(PO4)2 and MgAl2O4. Tooth roots with dense regions and with regions of controlled porosity for tissue ingrowth were made from the material. They were implanted submucosally in the mandible and maxilla of dogs.
T D, Mcgee, J L, Wood
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Structure of calcium aluminate sulfate Ca4Al6O16S

Journal of Solid State Chemistry, 1995
The commensurately modulated structure of polycrystalline calcium aluminate sulfate was determined using spectroscopic and electron microscopic information and calculations with the bond-valence method. The neutron powder diffraction data were refined by the Rietveld profile technique.
CALOS, NJ, KENNARD, CHL, WHITTAKER, AK, DAVIS, RL   +3 more
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Sintering of Calcium Aluminate

Transactions of the Indian Ceramic Society, 1996
Measurements of initial sintering shrinkage of CaAl4O7are reported in the temperature range 1380°-1480°C. The particle size chosen was—45 micron and the soaking periods were from 10 to 180 minutes. The time dependance of shrinkage indicated that the grain boundary diffusion is the dominant mechanism of sintering. The activation energy for the sintering
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Calcium Aluminate, RGD-Modified Calcium Aluminate, and β-Tricalcium Phosphate Implants in a Calvarial Defect

Journal of Craniofacial Surgery, 2009
Calcium aluminate (CaAl), arginine-glycine-aspartic acid-modified CaAl, and beta-tricalcium phosphate (TCP) implants were studied in a rat calvarial critical-sized defect model. The rates of newly formed bone and osteointegration were measured using 3 different methods: radiography, micro-computed tomography, and histologic examination.
Natasa D, Miljkovic, Gregory M, Cooper, Shelby L, Hott, Brian F, Disalle, Ellen S, Gawalt, Darren M, Smith, Kenneth, McGowan, Kacey G, Marra   +7 more
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Sintering and sulfation of calcium silicate-calcium aluminate

Industrial & Engineering Chemistry Research, 1990
The effect of sintering on the reactivity of solids at high temperature was studied. The nature of the interaction was studied with calcium silicate-aluminate reacting with SO2 between 665 and 800 C. The kinetics of the sintering and sulfation processes were measured independently in terms of the common variables, temperature and specific surface area.
R. H. Borgwardt, Gary T. Rochelle
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Calcium Aluminate Cement and Porcelain

Advanced Materials Research, 2014
Porcelain is a traditional ceramic material, which is manufactured for centuries from a mixture of kaolin - quartz - feldspar. Replacement of kaolin for calcium aluminate cement can be achieved primarily increases strength of fired body, reduces the coefficient of linear thermal expansion, increases the whiteness of the fired body and increases of ...
Radomír Sokolař, Lucie Vodová
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