{"id":2600,"date":"2026-03-30T01:58:28","date_gmt":"2026-03-30T01:58:28","guid":{"rendered":"https:\/\/www.fuyao-quartz.com\/?p=2600"},"modified":"2026-03-30T02:16:27","modified_gmt":"2026-03-30T02:16:27","slug":"quartz-glass-vs-regular-glass","status":"publish","type":"post","link":"https:\/\/www.fuyao-quartz.com\/vi\/quartz-glass-vs-regular-glass\/","title":{"rendered":"Th\u1ee7y tinh th\u1ea1ch anh so v\u1edbi th\u1ee7y tinh th\u00f4ng th\u01b0\u1eddng: Hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t trong c\u00e1c \u1ee9ng d\u1ee5ng khoa h\u1ecdc v\u00e0 c\u00f4ng nghi\u1ec7p"},"content":{"rendered":"

Glass is one of the most widely used materials in scientific, industrial, and consumer applications. However, not all glass is created equal. Th\u1ee7y tinh th\u1ea1ch anh <\/a>(also known as fused silica) and regular glass (typically soda-lime or borosilicate glass) differ significantly in their chemical composition, optical properties, thermal behavior, and mechanical performance. Understanding these differences is essential for engineers, researchers, and designers who rely on glass in precision applications.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

1. Composition Differences<\/h2>\n\n\n\n

K\u00ednh th\u00f4ng th\u01b0\u1eddng<\/h3>\n\n\n\n

Regular glass, such as soda-lime glass, is primarily composed of:<\/p>\n\n\n\n

    \n
  • Silicon dioxide (SiO2): ~70\u201375%<\/li>\n\n\n\n
  • Sodium oxide (Na2O) and calcium oxide (CaO): act as flux and stabilizers<\/li>\n\n\n\n
  • Minor additives: magnesium, aluminum, or other oxides to improve durability<\/li>\n<\/ul>\n\n\n\n

    Borosilicate glass, a high-end variant of regular glass, contains boron oxide (B2O3), which enhances thermal and chemical resistance.<\/p>\n\n\n\n

    Th\u1ee7y tinh th\u1ea1ch anh<\/h3>\n\n\n\n

    Quartz glass is made almost entirely of high-purity silicon dioxide (SiO2), usually above 99.9%. It is produced by:<\/p>\n\n\n\n

      \n
    • Melting natural quartz crystals at high temperatures (~2000 \u00b0C) or<\/li>\n\n\n\n
    • Chemical vapor deposition to produce extremely pure fused silica<\/li>\n<\/ul>\n\n\n\n

      Unlike regular glass, quartz glass contains no metal oxides<\/strong> or flux agents, which gives it unique properties.<\/p>\n\n\n\n

      2. Optical Properties<\/h2>\n\n\n\n

      Ph\u1ea1m vi truy\u1ec1n \u0111\u1ed9ng<\/h3>\n\n\n\n
        \n
      • K\u00ednh th\u00f4ng th\u01b0\u1eddng<\/strong>: Transparent in visible light (400\u2013700 nm), but absorbs UV light below ~350 nm and has limited infrared (IR) transmission.<\/li>\n\n\n\n
      • Th\u1ee7y tinh th\u1ea1ch anh<\/strong>: Extremely transparent across a much wider spectrum, from ultraviolet (UV, ~160 nm) to mid-infrared (~3.5 \u00b5m)<\/strong>.<\/li>\n<\/ul>\n\n\n\n

        Chi\u1ebft su\u1ea5t<\/h3>\n\n\n\n
          \n
        • Regular glass: ~1.5 (depends on composition)<\/li>\n\n\n\n
        • Quartz glass: ~1.46, with very low dispersion and minimal optical distortion<\/li>\n<\/ul>\n\n\n\n

          These differences make quartz glass ideal for UV lasers, spectroscopy, optical fibers, and precision lenses, whereas regular glass is sufficient for windows, containers, and low-cost optics.<\/p>\n\n\n\n

          3. Thermal Properties<\/h2>\n\n\n\n

          Coefficient of Thermal Expansion (CTE)<\/h3>\n\n\n\n
            \n
          • Regular soda-lime glass: ~9 \u00d7 10^-6 \/\u00b0C<\/li>\n\n\n\n
          • Borosilicate glass: ~3.3 \u00d7 10^-6 \/\u00b0C<\/li>\n\n\n\n
          • Quartz glass: ~0.5 \u00d7 10^-6 \/\u00b0C<\/li>\n<\/ul>\n\n\n\n

            Interpretation:<\/strong> Quartz glass expands far less when heated, making it highly resistant to thermal shock. For example:<\/p>\n\n\n\n

              \n
            • Pouring boiling water into soda-lime glass may crack it<\/li>\n\n\n\n
            • Quartz glass can withstand rapid temperature changes of several hundred degrees Celsius<\/li>\n<\/ul>\n\n\n\n

              Softening Temperature<\/h3>\n\n\n\n
                \n
              • Regular glass: ~700\u2013800 \u00b0C (soda-lime)<\/li>\n\n\n\n
              • Borosilicate: ~820\u2013850 \u00b0C<\/li>\n\n\n\n
              • Quartz glass: >1600 \u00b0C<\/li>\n<\/ul>\n\n\n\n

                Quartz glass can be used in high-temperature furnaces, semiconductor processing, and industrial optics, where regular glass would deform or melt.<\/p>\n\n\n\n

                4. Chemical Resistance<\/h2>\n\n\n\n

                Quartz glass has excellent chemical stability:<\/p>\n\n\n\n

                  \n
                • Resistant to acids (except hydrofluoric acid)<\/li>\n\n\n\n
                • Resistant to alkalis<\/li>\n\n\n\n
                • Does not leach ions<\/li>\n<\/ul>\n\n\n\n

                  Regular glass is more chemically reactive:<\/p>\n\n\n\n

                    \n
                  • Soda-lime glass can be attacked by strong acids and alkalis<\/li>\n\n\n\n
                  • Borosilicate glass is more resistant but still reacts under extreme conditions<\/li>\n<\/ul>\n\n\n\n

                    For applications in chemical reactors, laboratory glassware, or photonics, quartz glass is often preferred.<\/p>\n\n\n\n

                    5. Mechanical Properties<\/h2>\n\n\n\n
                      \n
                    • \u0110\u1ed9 c\u1ee9ng<\/strong>: Quartz glass (Mohs 6\u20137) is harder than regular glass (Mohs 5\u20136)<\/li>\n\n\n\n
                    • Strength<\/strong>: Both are brittle, but quartz glass can withstand higher temperatures without deformation<\/li>\n\n\n\n
                    • Durability<\/strong>: Quartz glass is more resistant to scratching and abrasion<\/li>\n<\/ul>\n\n\n\n

                      6. Applications Comparison<\/h2>\n\n\n\n
                      Property \/ Application<\/th>K\u00ednh th\u00f4ng th\u01b0\u1eddng<\/th>Th\u1ee7y tinh th\u1ea1ch anh<\/th><\/tr><\/thead>
                      C\u1eeda s\u1ed5 quang h\u1ecdc<\/td>\u2713 visible light<\/td>\u2713 UV, visible, IR<\/td><\/tr>
                      Laboratory beakers<\/td>\u2713<\/td>\u2713 high-temperature chemical applications<\/td><\/tr>
                      Thermal shock resistance<\/td>Th\u1ea5p<\/td>R\u1ea5t cao<\/td><\/tr>
                      High-temperature processing<\/td>S\u1ed1 l\u01b0\u1ee3ng c\u00f3 h\u1ea1n<\/td>Tuy\u1ec7t v\u1eddi<\/td><\/tr>
                      Fiber optics<\/td>\u2717<\/td>\u2713<\/td><\/tr>
                      UV laser optics<\/td>\u2717<\/td>\u2713<\/td><\/tr>
                      Chi ph\u00ed<\/td>Th\u1ea5p<\/td>Cao<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

                      T\u00f3m t\u1eaft:<\/strong> Regular glass is sufficient for general purposes and low-cost applications. Quartz glass is chosen when high purity, extreme temperature tolerance, wide optical range, and chemical inertness<\/strong> are required.<\/p>\n\n\n\n

                      7. K\u1ebft lu\u1eadn<\/h2>\n\n\n\n

                      Quartz glass and regular glass serve different needs:<\/p>\n\n\n\n

                        \n
                      • Regular glass<\/strong>: Cost-effective, good for everyday optical, container, and window applications<\/li>\n\n\n\n
                      • Th\u1ee7y tinh th\u1ea1ch anh<\/strong>: Premium material for high-precision, high-temperature, or high-purity applications in science and industry<\/li>\n<\/ul>\n\n\n\n

                        Choosing the right glass type depends on:<\/p>\n\n\n\n

                          \n
                        1. Optical wavelength requirements<\/strong><\/li>\n\n\n\n
                        2. Thermal and chemical environment<\/strong><\/li>\n\n\n\n
                        3. Mechanical and surface durability<\/strong><\/li>\n\n\n\n
                        4. Budget constraints<\/strong><\/li>\n<\/ol>\n\n\n\n

                          For laboratories, semiconductors, UV optics, or high-temperature reactors, quartz glass is often indispensable. For everyday applications, regular soda-lime or borosilicate glass remains the standard.<\/p>","protected":false},"excerpt":{"rendered":"

                          Glass is one of the most widely used materials in scientific, industrial, and consumer applications. However, not all glass is created equal. Quartz glass (also known as fused silica) and regular glass (typically soda-lime or borosilicate glass) differ significantly in their chemical composition, optical properties, thermal behavior, and mechanical performance. Understanding these differences is essential […]<\/p>\n","protected":false},"author":1,"featured_media":2601,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-disable-related-posts":"","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":"set","ast-page-background-enabled":"default","ast-page-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":"","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-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":"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":""},"mobile":{"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":""}},"footnotes":""},"categories":[1],"tags":[680,40,563,59,682,68,679,651,681],"class_list":["post-2600","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news","tag-borosilicate-glass","tag-chemical-resistance","tag-fused-silica","tag-high-temperature-glass","tag-optical-materials","tag-quartz-glass","tag-soda-lime-glass","tag-thermal-shock","tag-uv-optics"],"_links":{"self":[{"href":"https:\/\/www.fuyao-quartz.com\/vi\/wp-json\/wp\/v2\/posts\/2600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fuyao-quartz.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fuyao-quartz.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fuyao-quartz.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fuyao-quartz.com\/vi\/wp-json\/wp\/v2\/comments?post=2600"}],"version-history":[{"count":2,"href":"https:\/\/www.fuyao-quartz.com\/vi\/wp-json\/wp\/v2\/posts\/2600\/revisions"}],"predecessor-version":[{"id":2603,"href":"https:\/\/www.fuyao-quartz.com\/vi\/wp-json\/wp\/v2\/posts\/2600\/revisions\/2603"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fuyao-quartz.com\/vi\/wp-json\/wp\/v2\/media\/2601"}],"wp:attachment":[{"href":"https:\/\/www.fuyao-quartz.com\/vi\/wp-json\/wp\/v2\/media?parent=2600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fuyao-quartz.com\/vi\/wp-json\/wp\/v2\/categories?post=2600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fuyao-quartz.com\/vi\/wp-json\/wp\/v2\/tags?post=2600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}