Biomedical subjects

H Y Juang

Publications and source records attributed to H Y Juang.

2 recordsLinked to original sources

PubMed1998

Calcium phosphate coating on titanium substrate by a modified electrocrystallization process.

Modification of ethyl alcohol added aqueous electrolyte for depositing calcium phosphate on titanium substrates by a electrocrystallization method is described. Film coated in the electrolyte with ethyl alcohol addition is more homogeneous and the growth rate is higher. The optimum quantity of ethyl alcohol added is 50% of the electrolyte. Although the pH value of electrolyte varies as ethyl alcohol is added, the phases of the deposited film remain the same, and are hydroxyapatite and brushite. The development of the microstructure of the coated film during deposition is discussed.

Journal Article↗

PubMed1996

Effect of calcination on sintering of hydroxyapatite.

Four different temperatures (700-1000 degrees C) were chosen for calcination treatment of as-received hydroxyapatite powder before press forming and sintering to study the effect of calcination on the sintering behaviours. The results show that calcination treatment increases the average particle size and distribution, which changes from trimodal to monomodal. The sintering behaviours were investigated by dilatometry and density measurement. Fluidity of powder and driving force for sintering were found to dominate the properties. Calcining at 900 degrees C and sintering 1250 degrees C results in a higher bending strength (about 55 MPa) with finer grain size.

Hot Temperature↗