caa a22 4500 388021640 CHVBK 20180307124926.0 cr unu---uuuuu 161130e199802 xx s 000 0 eng 10.1557/JMR.1998.0039 doi S088429140004276X pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0039 Supercritical antisolvent precipitation: A new technique for preparing submicronic yttrium powders to improve YBCO superconductors [Elektronische Daten] The solvent, supercritical antisolvent technique (SAS) has been used to produce submicronic particles of yttrium acetate for the synthesis of YBCO superconductors. For this purpose, in a continuous SAS apparatus dimethylsulfoxide (DMSO) as yttrium acetate solvent and supercritical carbon dioxide as antisolvent have been adopted. Experiments have been performed in the pressure range between 70 and 160 bar and for temperatures between 40 and 70 °C. Different concentrations of yttrium acetate in DMSO have also been tested. Various morphologies of yttrium acetate particles have been obtained, having mean particle diameters from 0.1 to 7 μm. At 40 °C and pressures larger than 120 bar, submicronic spherical particles of yttrium acetate of about 0.1 μm diameter and with a narrow particle size distribution have been achieved. Copyright © Materials Research Society 1998 Reverchon E. Dipartimento di Ingegneria Chimica e Alimentare, Universitài Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA), Italy Celano C. Dipartimento di Ingegneria Chimica e Alimentare, Universitài Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA), Italy Della Porta G. Dipartimento di Ingegneria Chimica e Alimentare, Universitài Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA), Italy Di Trolio A. INFM e Dipartimento di Fisica, Università di Salerno, Via S. Allende, 84081 Baronissi (SA), Italy Pace S. INFM e Dipartimento di Fisica, Università di Salerno, Via S. Allende, 84081 Baronissi (SA), Italy Journal of Materials Research Cambridge University Press 13/2(1998-02), 284-289 0884-2914 13:2<284 1998 13 JMR https://doi.org/10.1557/JMR.1998.0039 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0039 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Reverchon E. Dipartimento di Ingegneria Chimica e Alimentare, Universitài Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA), Italy NATIONALLICENCE 700 1- Celano C. Dipartimento di Ingegneria Chimica e Alimentare, Universitài Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA), Italy NATIONALLICENCE 700 1- Della Porta G. Dipartimento di Ingegneria Chimica e Alimentare, Universitài Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA), Italy NATIONALLICENCE 700 1- Di Trolio A. INFM e Dipartimento di Fisica, Università di Salerno, Via S. Allende, 84081 Baronissi (SA), Italy NATIONALLICENCE 700 1- Pace S. INFM e Dipartimento di Fisica, Università di Salerno, Via S. Allende, 84081 Baronissi (SA), Italy NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/2(1998-02), 284-289 0884-2914 13:2<284 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge