{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T00:40:53Z","timestamp":1791247253635,"version":"4.1.0"},"reference-count":11,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2001,10,24]],"date-time":"2001-10-24T00:00:00Z","timestamp":1003881600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Biomed. Mater. Res."],"published-print":{"date-parts":[[2002,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Hydroxylapatite (HA) was made containing magnesium, zinc, cadmium, and yttrium. Salts of these cations were added to precipitating HA; the precipitates were dried and sintered at 1100\u00b0C for 1 h. Lattice parameters from X\u2010ray diffraction spectra showed that these elements were incorporated into the apatite structure at a level of 2% added fraction of calcium in HA and up to 7% for yttrium. The densities of different substituted apatites were close to theoretical for pressed and sintered samples, which is evidence for low bulk porosity. The grain sizes of substituted apatites were smaller than those of pure HA except for cadmium\u2010containing apatite. Surfaces of etched samples showed no second phases, whereas surfaces of unetched samples showed second phases and higher porosity than etched surfaces. \u00a9 2001 Wiley Periodicals, Inc. J Biomed Mater Res 59: 305\u2013311, 2002<\/jats:p>","DOI":"10.1002\/jbm.1246","type":"journal-article","created":{"date-parts":[[2002,8,25]],"date-time":"2002-08-25T16:13:46Z","timestamp":1030292026000},"page":"305-311","source":"Crossref","is-referenced-by-count":176,"title":["Hydroxylapatite with substituted magnesium, zinc, cadmium, and yttrium. I. 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