Syntetick\u00fd vyroben\u00fd saf\u00edr metodou Flame fussion (Verneuilova metoda). Tato metoda byla vymy\u0161lena ji\u017e na za\u010d\u00e1tku 20. stol. Flame fussion (Verneuilova metoda) byla prvn\u00ed komer\u010dn\u011b pou\u017eiteln\u00e1 metoda, kterou se poda\u0159ilo vyrobit syntetick\u00fd drah\u00fd k\u00e1men ve vysok\u00e9 kvalit\u011b. Tuto metodu vyvinul v roce 1902 francouzsk\u00fd chemik Auguste Verneuil (vych\u00e1zel z prac\u00ed Fremyho). Poprv\u00e9 se mu poda\u0159ilo vyrobit syntetick\u00fd rub\u00edn, a\u017e o n\u011bkolik let pozd\u011bji t\u00e9\u017e syntetick\u00fd saf\u00edr.\u00a0 Princip procesu spo\u010d\u00edv\u00e1 v roztaven\u00ed jemn\u011b mlet\u00e9ho pr\u00e1\u0161kovit\u00e9ho oxidu hlin\u00edku (s \u010distotou 99.9995 %) s barvivy (Cr \u2013 rub\u00edn, Fe+Ti \u2013 saf\u00edr) a n\u00e1sledn\u00e9 krystalizace do tvaru \u201aprot\u00e1hl\u00e9 hru\u0161ky\u2018. Teplota taven\u00ed je minim\u00e1ln\u011b 2000\u00b0C. Jemn\u011b mlet\u00fd pr\u00e1\u0161ek Al2O3 se sype p\u0159es plamen, zde se pr\u00e1\u0161ek m\u011bn\u00ed na malink\u00e9 kapi\u010dky, kter\u00e9 n\u00e1sledn\u011b dopadaj\u00ed na zarode\u010dn\u00ed krystal. Z\u00e1rode\u010dn\u00ed krystal je postupn\u011b obalen do vznikl\u00e9ho syntetick\u00e9ho saf\u00edru (korundu) ve tvaru ji\u017e zm\u00edn\u011bn\u00e9 hru\u0161ky. Tento nab\u00edzen\u00fd r\u016f\u017eov\u00fd saf\u00edr byl vyroben v \u010cR\u00a0 v \u00dast\u00ed nad Labem, okolo roku 1970. Synteticky vyroben\u00fd korund Flame fussion metodou (rub\u00edn i saf\u00edr) se poznaj\u00ed velmi snadno, podle p\u0159\u00edtomnosti ohnut\u00fdch lini\u00edch. Tento fenom\u00e9n je dob\u0159e vid\u011bt ji\u017e p\u0159i 50. n\u00e1sobn\u00e9m zv\u011bt\u0161en\u00ed v mikroskopu. N\u011bkdy je nespr\u00e1vn\u011b tento typ synt\u00e9zy ozna\u010dov\u00e1n jako syntetick\u00fd alexandrit d\u00edky siln\u00e9 barvom\u011bn\u011b, av\u0161ak s alexandritem nem\u00e1 nic spole\u010dn\u00e9ho.<\/p>\n","protected":false},"excerpt":{"rendered":"
Syntetick\u00fd vyroben\u00fd saf\u00edr metodou Flame fussion (Verneuilova metoda). Tato metoda byla vymy\u0161lena ji\u017e na za\u010d\u00e1tku 20. stol. Flame fussion (Verneuilova metoda) byla prvn\u00ed komer\u010dn\u011b pou\u017eiteln\u00e1 metoda, kterou se poda\u0159ilo vyrobit syntetick\u00fd drah\u00fd k\u00e1men ve vysok\u00e9 kvalit\u011b. Tuto metodu vyvinul v roce 1902 francouzsk\u00fd chemik Auguste Verneuil (vych\u00e1zel z prac\u00ed Fremyho). Poprv\u00e9 se mu poda\u0159ilo vyrobit […]<\/p>\n","protected":false},"featured_media":9984,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"product_brand":[],"product_cat":[212],"product_tag":[],"class_list":["post-9983","product","type-product","status-publish","has-post-thumbnail","product_cat-synteticke-kameny-pro-gemology","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/product\/9983","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/media\/9984"}],"wp:attachment":[{"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/media?parent=9983"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/product_brand?post=9983"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/product_cat?post=9983"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/product_tag?post=9983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}