{"id":302,"date":"2024-08-31T01:08:01","date_gmt":"2024-08-30T18:08:01","guid":{"rendered":"http:\/\/www.tneutron.net\/seni\/?p=302"},"modified":"2024-08-28T08:08:05","modified_gmt":"2024-08-28T01:08:05","slug":"physical-changes-clay-once-burned","status":"publish","type":"post","link":"https:\/\/www.tneutron.net\/seni\/physical-changes-clay-once-burned\/","title":{"rendered":"Physical Changes Clay Once Burned"},"content":{"rendered":"<p><span class=\"notranslate\">The first change that occurs in the primary and secondary clay when burned, is the loss of free water.<\/span> <span class=\"notranslate\"> Especially for secondary clay will be followed by the burning of other organic materials, such as humus, leaves, and twigs contained in the clay.<\/span> <span class=\"notranslate\"> The next change is the loss of the water content of the chemical.<\/span> <span class=\"notranslate\"> Primary and secondary clay containing free silica in the form of sand, quartz, flint and crystal.<\/span><\/p>\n<p><span class=\"notranslate\"> Silica is subject to change the shape and volume of clay at a certain temperature.<\/span> <span class=\"notranslate\"> Some changes are permanent and can not return (conversion) and the other is to change back (inversion).<\/span> <span class=\"notranslate\"> So that the clay can be transformed into ceramic must go through a combustion process with temperatures exceeding 600oC.<\/span> <span class=\"notranslate\"> After going through the temperature clay will change into a solid mineral, hard, and permanent.<\/span><\/p>\n<p><span class=\"notranslate\"> These changes are called ceramic change or alteration occurs at a temperature ceramic and clay burnt 573oC.Tanah less than 600oC yet have proper maturity despite being unchanged keramik.Kematangan vitrified clay or ceramic is a condition that has reached the proper temperature of ripeness without changing form.<\/span> <span class=\"notranslate\"> At combustion temperatures below 800\u00baC, free silica minerals such as carbonate minerals will change as well.<\/span><\/p>\n<p><span class=\"notranslate\"> This is a result of the burning of all the elements carbon, and the process is called calcination process.<\/span> <span class=\"notranslate\"> Physical changes occur above a temperature of 800\u00baC, which is when the alkaline ingredients that act as &#8216;flux&#8217; over silica and alumina that form a crystal network (noble) and the glass binding material can not be dissolved into a solid mass (burning biscuits).<\/span> <span class=\"notranslate\"> When the clay burnt at a temperature of 1300 <sup>\u00b0<\/sup> C, some changes will occur, for example, the body becomes harder when it cools and becomes impermeable.<\/span><\/p>\n<p><span class=\"notranslate\"> Clay has been undergoing a process of &#8216;vitrification&#8217;, meaning that most of the material, especially silica has menggelas, enters the pores and bind all the particles of clay to form a bond that is known to bond &#8216;silica alumina hydroxide&#8217;.<\/span> <span class=\"notranslate\"> The vitrification process can be accompanied by a volume shrinkage, where the higher the temperature the greater the fuel but the lower shrinkage porosity or in other words objects more dense and impermeable.<\/span><\/p>\n<p><span class=\"notranslate\"> Clay that does not undergo a process of &#8216;vitrification&#8217; at high temperature (1300\u00baC) can be classified into types of clay &#8216;refractory&#8217; (refractory clay).<\/span><br \/>\n<a href=\"http:\/\/i1.wp.com\/www.tneutron.net\/seni\/wp-content\/uploads\/sites\/7\/2015\/08\/image10.png\"><img loading=\"lazy\" decoding=\"async\" title=\"image\" src=\"http:\/\/i2.wp.com\/www.tneutron.net\/seni\/wp-content\/uploads\/sites\/7\/2015\/08\/image_thumb14.png?resize=444%2C257\" alt=\"image\" width=\"444\" height=\"257\" border=\"0\" \/><\/a><br \/>\n<span class=\"notranslate\"> Figure 17. incandescent ceramic objects in the furnace to reach maturity<\/span><\/p>\n<p><span class=\"notranslate\"> Each clay can be melted when the fuel temperature cukup.Idealnya every type of clay has the vitrification point without a change of shape (deformation) .In practice, the vitrification is often followed by bentuk.Hal change is due to the stresses on the body the weakest result melting of clay minerals.<\/span> <span class=\"notranslate\"> Change the color of fire, temperature, and the condition that occurs in clay when the combustion process, as shown in the table below.<\/span><\/p>\n<p><span class=\"notranslate\"> Things that need to be considered in the combustion:<\/span><br \/>\n<span class=\"notranslate\"> a.<\/span> <span class=\"notranslate\"> Do not burn too fast clay because the clay will explode into pieces or cracked.<\/span> <span class=\"notranslate\"> This is due to not enough time for the water to evaporate plasticity.<\/span><\/p>\n<p><span class=\"notranslate\"> b.<\/span> <span class=\"notranslate\"> The cooling process should not be done quickly, clay volume changes that are often very sudden.<\/span> <span class=\"notranslate\"> Causes a sudden cooling of the surface will be hotter than the other surfaces, so that when the volume change another volume has not changed.<\/span> <span class=\"notranslate\"> It is this factor which causes the fired clay to be broken.<\/span> <span class=\"notranslate\"> Therefore, the cooling process should be done later and as evenly as possible to prevent the outbreak of the goods.<\/span> <span class=\"notranslate\"> These errors will rarely occur when the furnace is not opened before the temperature in the furnace reaches 100 <sup>o<\/sup> C.<\/span><\/p>\n<p><span class=\"notranslate\"> <strong>Table Heatworkchart: Changes in the ceramic material by heat.<\/strong><\/span><br \/>\n<a href=\"http:\/\/i2.wp.com\/www.tneutron.net\/seni\/wp-content\/uploads\/sites\/7\/2015\/08\/image15.png\"><img loading=\"lazy\" decoding=\"async\" title=\"image\" src=\"http:\/\/i0.wp.com\/www.tneutron.net\/seni\/wp-content\/uploads\/sites\/7\/2015\/08\/image_thumb15.png?resize=444%2C326\" alt=\"image\" width=\"444\" height=\"326\" border=\"0\" \/><\/a><br \/>\n<a href=\"http:\/\/i0.wp.com\/www.tneutron.net\/seni\/wp-content\/uploads\/sites\/7\/2015\/08\/image17.png\"><img loading=\"lazy\" decoding=\"async\" title=\"image\" src=\"http:\/\/i2.wp.com\/www.tneutron.net\/seni\/wp-content\/uploads\/sites\/7\/2015\/08\/image_thumb17.png?resize=444%2C433\" alt=\"image\" width=\"444\" height=\"433\" border=\"0\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The first change that occurs in the primary and secondary clay when burned, is the loss of free water. Especially<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[1812],"tags":[295,288,291,294,290,293,296,289,292,286,287],"class_list":["post-302","post","type-post","status-publish","format-standard","hentry","category-english","tag-clay-physical-and-chemical-properties","tag-clay-physical-properties","tag-clay-physical-therapy","tag-claybourne-physical-therapy","tag-claybourne-physical-therapy-kettering-ohio","tag-claystone-physical-properties","tag-clayton-physical-medicine","tag-clayton-physical-therapy","tag-claytronics-physical-dynamic-rendering","tag-physical-clay","tag-physical-claydol"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Physical Changes Clay Once Burned - TN Seni<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tneutron.net\/seni\/physical-changes-clay-once-burned\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Physical Changes Clay Once Burned - TN Seni\" \/>\n<meta name=\"twitter:description\" content=\"The first change that occurs in the primary and secondary clay when burned, is the loss of free water. 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