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Water-based sol-gel synthesis of hydroxyapatite: process development.
Hydroxyapatite (HA) ceramics were synthesized using a sol-gel route with triethyl phosphite and calcium nitrate as phosphorus and calcium precursors, respectively. Two solvents, water and anhydrousExpand
Hydrogen generation through massive corrosion of deformed aluminum in water
Abstract Aluminum, one of most reactive metals, rapidly corrodes in strong acidic or alkaline solutions but passivates at pH of about 5–9. We have determined that the passivation of aluminum in thisExpand
Novel fracture toughness test using a notchless triangular prism (NTP) specimen.
The aim of this study was to develop and validate a new method for determining the fracture toughness of materials and adhesive interfaces. The new test specimen is a notchless triangular prism (NTP)Expand
Aging effect on the phase evolution of water-based sol-gel hydroxyapatite.
In a number of recent reports on the synthesis of sol-gel hydroxyapatite, aging of the precursor solution has been found to be critical in developing an apatitic phase. Critical aging time isExpand
Effect of magnesia on strength of hydratable alumina-bonded castable refractories
The change in strength of hydratable alumina-bonded castable refractories in the presence of magnesia powder and magnesia aggregate, after heat treatment at 110∘ and 816∘C, and the relationshipExpand
Sol-gel hydroxyapatite coatings on stainless steel substrates.
Thin film hydroxyapatite deposits onto sandblasted 316L stainless steel substrates were prepared using water-based sol-gel technique recently developed in our lab. The coatings were annealed in airExpand
In-situ preparation of poly(propylene fumarate)--hydroxyapatite composite.
In-situ precipitation of hydroxyapatite (HAp) in the presence of poly(propylene fumarate) (PPF) is investigated. Amorphous calcium phosphate (ACP) precipitates in the presence of the polymer andExpand
Development of novel TiO2 sol–gel-derived composite and its photocatalytic activities for trichloroethylene oxidation
Abstract A novel method for the processing of sol–gel-derived titanium dioxide composites has been developed and investigated for the purpose of producing thick films and self-supportedExpand
In vitro studies of calcium phosphate silicate bone cements
A novel calcium phosphate silicate bone cement (CPSC) was synthesized in a process, in which nanocomposite forms in situ between calcium silicate hydrate (C–S–H) gel and hydroxyapatite (HAP). TheExpand
Effect of hydrolysis on the phase evolution of water-based sol–gel hydroxyapatite and its application to bioactive coatings
In a previous report, we demonstrated a successful synthesis of crystalline hydroxyapatite (HA) through the use of a water-based sol–gel process. It was shown that the apatite can be obtained atExpand