Zobrazeno 1 - 10 of 27 pro vyhledávání: '"J. C. Heughebaert"'
1
Central composite design and optimization by multiresponse analysis of octacalcium phosphate synthesis
Autor: J.-C. Heughebaert, A. Lebugle, F. Vu, R. Phan-Tan-Luu
Publikováno v: Analusis. 28:571-574
Synthesis of octacalcium phosphate (OCP) by hydrolysis of brushite was studied using a 3 block central composite design including 4 factors and 6 responses. Analysis of the responses allowed the definition of one set of experimental conditions in whi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bfaa6f536d5d9794c7bfdfaf398a33a3
https://doi.org/10.1051/analusis:2000132
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2
ACTION OF SULFUR DIOXIDE ON PHOSPHOCALCIC HYDROXYAPATITE AT DIFFERENT TEMPERATURES
Autor: J. C. Heughebaert, M. Heughebaert, M. Marraha
Publikováno v: Phosphorus, Sulfur, and Silicon and the Related Elements. 79:281-291
Depending on temperature and heating time, the reaction between sulfur dioxide and phosphocalcic hydroxyapatite Ca10(PO4)6(OH)2 gives, either a mixture of calcium sulfate and β-calcium pyrophoshate (β-Ca2P2O7), or a mixture of calcium sulfate and a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac5fb2b6eaa8706d9ba378d003610ccc
https://doi.org/10.1080/10426509308034420
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3
Stoichiometry of hydroxyapatite: influence on the flexural strength
Autor: A. Royer, M. Heughebaert, J. C. Viguie, J. C. Heughebaert
Publikováno v: Journal of Materials Science: Materials in Medicine. 4:76-82
This paper reports results on the sintering behaviour of hydroxyapatite (HAP) for various compositions and its resultant flexural strength. The HAP decomposition occurs at higher temperatures for sintered compacts than for powder and their OH stoichi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2e7fd8bd65d497d68c15fcc17ff539f8
https://doi.org/10.1007/bf00122982
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4
PREPARATION ET ETUDE PHYSICO-CHIMIQUE D'UNE SERIE DE PHOSPHOSULFATES DE CALCIUM Ca21−x(PO4)14-2x(SO4)2x(0 ≤x≤ 1) PRESENTANT LA STRUCTURE DE L'ORTHOPHOSPHATE TRICALCIQUE ANHYDRE β-Ca3(PO4)2
Autor: M. Marraha, J. C. Heughebaert
Publikováno v: Phosphorus, Sulfur, and Silicon and the Related Elements. 44:177-192
Dans le systeme Ca3(PO4)2-CaSO4, des solides monophases Ca21−x(PO4)14−2x(SO4)2x (0 ≤ x ≤ 1) ont ee prepares. II s'agit de solutions solides qui presentent la structure de l'orthophosphate tricalcique anhydre β. La limite de solubilite de l'i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::50975230e2b7700fd7dca59bf0d5b1e6
https://doi.org/10.1080/10426508908040607
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5
Statistical analysis of the removal of aluminum and magnesium impurities from wet-process phosphoric acid
Autor: Hassine Ferid Ayedi, M. Chaabouni, J. C. Heughebaert, M. Vaillant, M. Feki
Publikováno v: The Canadian Journal of Chemical Engineering. 65:132-136
The present paper relates to the treatment of crude wet-process phosphoric acid with ammonium nitrate and hydrofluoric acid to precipitate aluminum and magnesium impurities in the form of an easily separable phase: (NH4)xMgyAlz (F, OH)6.2 H2O. To che
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e188f0777302d650937bf0e0c1d3561
https://doi.org/10.1002/cjce.5450650121
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6
Kinetics of crystallization of octacalcium phosphate
Autor: J. C. Heughebaert, G. H. Nancollas
Publikováno v: The Journal of Physical Chemistry. 88:2478-2481
Cristallisation a 37°C de Ca 8 H 2 (PO 4 ) 6 •5H 2 O a partir de solutions sursaturees metastables, sur germes
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7ea8674eb2eb7e3ce65faf3885f5bfd6
https://doi.org/10.1021/j150656a012
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8
Étude de l'évolution de l'orthophosphate tricalcique non cristallin en phosphate apatitique à la faveur d'une réaction chimique, à température ordinaire
Autor: G. Montel, J.-C. Heughebaert
Publikováno v: Revue de Physique Appliquée
Revue de Physique Appliquée, Société française de physique / EDP, 1977, 12 (5), pp.691-694. ⟨10.1051/rphysap:01977001205069100⟩
Le phosphate tricalcique non cristallin Ca9(PO4) 6, nH2O subit dès sa précipitation une hydrolyse conduisant à la formation dans le solide d'ions HPO2-4 et OH - : en isotherme la teneur en ces ions croît en fonction du temps jusqu'à un composé
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3ffc8470da240fd16f8a17a5cf8faba
https://hal.archives-ouvertes.fr/jpa-00244227/document
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10
[Relation between calcium phosphates and calcium oxalates in urinary calculi]
Autor: J C, Heughebaert
Publikováno v: Nephrologie. 5(4)
A review on the knowledge of the precipitation of calcium phosphates and calcium oxalates is presented. The simultaneous presence of these solids in urinary stones may be originated, according to experimental conditions, from the homogeneous nucleati
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::9ce683502c67e404d685212db3c42084
https://pubmed.ncbi.nlm.nih.gov/6098838
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