Thermal\u00a0behavior\u00a0of\u00a0talc\u00a0samples (from locality Puebla de Lillo, Spain) were\u00a0characterized\u00a0by\u00a0emanation\u00a0thermal\u00a0analysis\u00a0(ETA), DTA and TG. The ETA, based on the measurement\u00a0of\u00a0radon release rate from samples, revealed a closing up\u00a0of\u00a0surface micro-cracks and annealing\u00a0of\u00a0microstructure\u00a0irregularities\u00a0of\u00a0the\u00a0talc\u00a0samples on heating in the range 200-500 degrees C.<\/p>\n
For ground\u00a0talc\u00a0sample a crystallization\u00a0of\u00a0non-crystalline phase formed\u00a0by\u00a0grinding, into orthorhombic enstatite was\u00a0characterized\u00a0as a decrease\u00a0of\u00a0radon mobility in the range 785-825 degrees C and\u00a0by\u00a0a DTA exothermal effect with the maximum at 830 degrees C. ETA results\u00a0characterized\u00a0the\u00a0microstructure\u00a0development\u00a0of\u00a0the\u00a0talc\u00a0samples on heating and served to evaluate their radon mobility and\u00a0transport\u00a0properties\u00a0on heating and cooling.\u00a0Transport\u00a0properties\u00a0of\u00a0the\u00a0talc\u00a0samples were evaluated\u00a0by\u00a0using ETA experimental data measured during heating to 600 and 1300 degrees C, respectively, and subsequent cooling to room temperature.<\/p>\n","protected":false},"excerpt":{"rendered":"
Thermal\u00a0behavior\u00a0of\u00a0talc\u00a0samples (from locality Puebla de Lillo, Spain) were\u00a0characterized\u00a0by\u00a0emanation\u00a0thermal\u00a0analysis\u00a0(ETA), DTA and TG. The ETA, based on the measurement\u00a0of\u00a0radon release rate from samples, revealed a closing up\u00a0of\u00a0surface micro-cracks and annealing\u00a0of\u00a0microstructure\u00a0irregularities\u00a0of\u00a0the\u00a0talc\u00a0samples on heating in the range 200-500 degrees C. For ground\u00a0talc\u00a0sample a crystallization\u00a0of\u00a0non-crystalline phase formed\u00a0by\u00a0grinding, into orthorhombic enstatite was\u00a0characterized\u00a0as a decrease\u00a0of\u00a0radon mobility in the range 785-825 degrees C…<\/p>\n","protected":false},"featured_media":0,"template":"","autores":[],"grupos_de_investigacion":[139],"revistas":[1713],"anos":[897],"class_list":["post-29507","articulos_sci","type-articulos_sci","status-publish","hentry","grupos_de_investigacion-reactividad-de-solidos","revistas-journal-of-thermal-analysis-and-calorimetry","anos-897","description-off"],"acf":[],"_links":{"self":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/29507","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci"}],"about":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/types\/articulos_sci"}],"version-history":[{"count":0,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/29507\/revisions"}],"wp:attachment":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=29507"}],"wp:term":[{"taxonomy":"autores","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fautores&post=29507"},{"taxonomy":"grupos_de_investigacion","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fgrupos_de_investigacion&post=29507"},{"taxonomy":"revistas","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Frevistas&post=29507"},{"taxonomy":"anos","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fanos&post=29507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}