Materialul cuar\u021b (SiO\u2082) este foarte asem\u0103n\u0103tor cu sticla la prima vedere, dar ceea ce este mai special este c\u0103 sticla obi\u0219nuit\u0103 este compus\u0103 din mai multe componente (cum ar fi nisip de cuar\u021b, borax, acid boric, barit, carbonat de bariu, calcar, feldspat, sod\u0103 etc.). Deoarece cantitatea de impurit\u0103\u021bi metalice con\u021binute \u00een cuar\u021b este foarte mic\u0103, iar puritatea sa proprie este extrem de ridicat\u0103, cuar\u021bul \u00eensu\u0219i are caracteristici \u0219i avantaje pe care alte tipuri de sticl\u0103 nu le pot prezenta, fiind cunoscut sub numele de \"coroana\" \u00een materialele din sticl\u0103. De exemplu, \u00een ceea ce prive\u0219te rezisten\u021ba la c\u0103ldur\u0103, cuar\u021bul nu va exploda chiar dac\u0103 este pus \u00een ap\u0103 imediat dup\u0103 ce a fost ars \u00een ro\u0219u \u00een foc, \u00een timp ce sticla obi\u0219nuit\u0103 nu va exploda \u00een ap\u0103 dup\u0103 ce a fost ars\u0103 \u00een ro\u0219u, dar va fi rupt\u0103 \u00een buc\u0103\u021bi de \u00eendat\u0103 ce este ars\u0103. Mai multe avantaje specifice sunt dup\u0103 cum urmeaz\u0103:
1. Rezisten\u021b\u0103 la temperaturi ridicate. Temperatura punctului de \u00eenmuiere a sticlei de cuar\u021b este de aproximativ 1730 \u2103, poate fi utilizat\u0103 pentru o perioad\u0103 lung\u0103 de timp la 1150 \u2103, iar cea mai mare temperatur\u0103 poate ajunge la 1450 \u2103 \u00eentr-un timp scurt.<\/p>\n\n\n\n
2. Rezisten\u021b\u0103 la coroziune. Cu excep\u021bia acidului fluorhidric, cuar\u021bul de \u00eenalt\u0103 puritate nu are aproape nicio reac\u021bie chimic\u0103 cu al\u021bi acizi. La temperaturi ridicate, este rezistent la atacul acidului sulfuric, acidului azotic, acidului clorhidric, apei regale, s\u0103rurilor neutre, carbonului \u0219i sulfului. Rezisten\u021ba sa la acizi este de 30 de ori mai mare dec\u00e2t cea a ceramicii \u0219i de 150 de ori mai mare dec\u00e2t cea a o\u021belului inoxidabil, \u00een special stabilitatea sa chimic\u0103 la temperaturi ridicate, care nu este egalat\u0103 de niciun alt material tehnic.<\/p>\n\n\n\n
3. Stabilitate termic\u0103 bun\u0103. Coeficientul de dilatare termic\u0103 al cuar\u021bului de \u00eenalt\u0103 puritate este extrem de mic \u0219i poate rezista la schimb\u0103ri severe de temperatur\u0103. Cuar\u021bul de \u00eenalt\u0103 puritate este \u00eenc\u0103lzit la aproximativ 1100 \u2103 \u0219i nu se va sparge \u00een ap\u0103 la temperatur\u0103 normal\u0103.<\/p>\n\n\n\n
4. Performan\u021b\u0103 bun\u0103 de transmisie a luminii. Cuar\u021bul de \u00eenalt\u0103 puritate are o bun\u0103 transmisie a luminii \u00een \u00eentreaga band\u0103 spectral\u0103 de la ultraviolete la infraro\u0219u, iar transmisia luminii vizibile este de peste 93%, \u00een special \u00een regiunea spectral\u0103 ultraviolet\u0103, transmisia maxim\u0103 poate ajunge la mai mult de 80%.<\/p>\n\n\n\n
5. Performan\u021b\u0103 bun\u0103 de izolare electric\u0103. Valoarea rezisten\u021bei cuar\u021bului de \u00eenalt\u0103 puritate este de 10.000 de ori mai mare dec\u00e2t cea a sticlei obi\u0219nuite de cuar\u021b. Este un material izolant electric excelent \u0219i are propriet\u0103\u021bi electrice bune chiar \u0219i la temperaturi ridicate.<\/p>\n\n\n\n
Datorit\u0103 acestor propriet\u0103\u021bi fizice \u0219i chimice excelente, materialele din cuar\u021b de \u00eenalt\u0103 puritate sunt utilizate pe scar\u0103 larg\u0103 \u00een tehnologia electronic\u0103 modern\u0103, semiconductori, comunica\u021bii, surse de lumin\u0103 electric\u0103, energie solar\u0103, instrumente de m\u0103surare de \u00eenalt\u0103 precizie pentru ap\u0103rarea na\u021bional\u0103, instrumente fizice \u0219i chimice de laborator, energie nuclear\u0103, nano-industrie etc. \u00cen special \u00een industria semiconductorilor, care se dezvolt\u0103 rapid, dimensiunea pl\u0103cilor de siliciu a crescut, astfel \u00eenc\u00e2t produc\u0103torii de cipuri au crescut cererea pentru diverse componente din cuar\u021b. Cu toate acestea, trebuie remarcat \u0219i faptul c\u0103, pentru a preveni contaminarea \u00een timpul prelucr\u0103rii, trebuie asigurat\u0103 puritatea ridicat\u0103 a materialului de cuar\u021b \u00een timpul utiliz\u0103rii<\/p>","protected":false},"excerpt":{"rendered":"
Quartz (SiO\u2082) material is very similar to glass at first glance, but what is more special is that ordinary glass […]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Quartz Glass Products Advantages","_seopress_titles_desc":"","_seopress_robots_index":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-378","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/exactquartz.com\/ro\/wp-json\/wp\/v2\/posts\/378","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exactquartz.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exactquartz.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exactquartz.com\/ro\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/exactquartz.com\/ro\/wp-json\/wp\/v2\/comments?post=378"}],"version-history":[{"count":1,"href":"https:\/\/exactquartz.com\/ro\/wp-json\/wp\/v2\/posts\/378\/revisions"}],"predecessor-version":[{"id":381,"href":"https:\/\/exactquartz.com\/ro\/wp-json\/wp\/v2\/posts\/378\/revisions\/381"}],"wp:attachment":[{"href":"https:\/\/exactquartz.com\/ro\/wp-json\/wp\/v2\/media?parent=378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exactquartz.com\/ro\/wp-json\/wp\/v2\/categories?post=378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exactquartz.com\/ro\/wp-json\/wp\/v2\/tags?post=378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}