Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal Indonesian Applied Physics Letters
Falentina, Winda Dwi
Unknown Affiliation
Chemical Engineering, Chemistry & Bioengineering Electrical & Electronics Engineering Materials Science & Nanotechnology Physics

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
The Role of Calcination Temperature Variation in The Sol–Gel Synthesis of Hydroxyapatite Siswanto; Hikmawati, Dyah; Falentina, Winda Dwi
Indonesian Applied Physics Letters Vol. 6 No. 1 (2025): Volume 6 No. 1 – December 2025
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/iapl.v6i1.84056

Abstract

This study aims to synthesize hydroxyapatite using the sol–gel method with variations in calcination temperature. The hydroxyapatite precursor was derived from eggshell. The egg shell powder was milled using High Energy Milling (HEM) for 20 hours, producing particles measuring 54.84 nm based on Particle Size Analyzer (PSA) results. A 1.67 M calcium dioxide solution obtained from the coral powder was reacted with a 1 M phosphoric acid solution through the sol–gel process. The resulting gel was dehydrated at 110 °C and then calcined at temperatures ranging from 450 to 900 °C for 5 hours. The synthesized products were characterized using X-ray Diffraction (XRD). The results indicated that calcination at 550 °C for 5 hours produced the most stable hydroxyapatite phase, with a volume fraction of 90.8%, a crystallinity degree of 39.8%, and a crystal size of 32.09 nm.
Co-Authors Siswanto