{"id":15593,"date":"2023-03-01T08:33:21","date_gmt":"2023-03-01T08:33:21","guid":{"rendered":"https:\/\/staging.cursist-courses.com\/what-is-sintering\/"},"modified":"2025-01-30T12:22:39","modified_gmt":"2025-01-30T12:22:39","slug":"what-is-sintering","status":"publish","type":"post","link":"https:\/\/staging.cursist-courses.com\/en\/what-is-sintering\/","title":{"rendered":"What is sintering?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"15593\" class=\"elementor elementor-15593 elementor-10412\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-a6b6a59 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a6b6a59\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5058343\" data-id=\"5058343\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6c0453a elementor-widget elementor-widget-heading\" data-id=\"6c0453a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-large\">How does sintering work?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-532c7a6 elementor-widget elementor-widget-text-editor\" data-id=\"532c7a6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Clay consists of many different ingredients: quartz, feldspar, ilmenite and hydrated iron compounds, silica and aluminum salts &#8230; <a href=\"https:\/\/staging.cursist-courses.com\/keramiek-oven\/\">Before the clay has been fired, there is still some air between all of these particles.<\/a> There are tiny pores in the clay, so to speak, and as a result the pot is currently still <b>porous<\/b> .<\/p>\n<p>Once the kiln reaches a certain temperature, the clay particles are chemically activated and clump together. The pores close and the loose particles melt together into <b>one solid whole<\/b><strong>.<\/strong> This is called <b>sintering<\/b>. Because the empty space between the clay particles disappears, your pot will <b>shrink<\/b> slightly during sintering. But it is thanks to this sintering process that your pot comes out of the kiln a lot <b>stronger and more durable<\/b>.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2dd137d elementor-widget elementor-widget-heading\" data-id=\"2dd137d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">What can go wrong during sintering?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e2ae50d elementor-widget elementor-widget-text-editor\" data-id=\"e2ae50d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Without sintering, your pot would be as fragile as it was when it went into the kiln. It&#8217;s a crucial step. So if something goes wrong during this step, there are huge consequences: cracks, holes, unevenness, or even a broken pot.<\/p>\n<ul>\n<li>If the temperature in the kiln is not uniform, different parts of your pot will sinter at different speeds. This means that the clay will shrink at different speeds, resulting in cracks.<\/li>\n<li>But even if the temperature within the kiln is uniform, the surface layers of your pot will always heat up a little faster than the deeper layers of clay. That&#8217;s not a problem if it happens gradually, but if the temperature goes up too fast, the difference between those layers may become too great. That&#8217;s exactly why firing pottery is done slowly, in a very controlled way.<\/li>\n<li>There are always small inconsistencies in clay: here and there the clay particles are more close together. <a href=\"https:\/\/staging.cursist-courses.com\/waarom-moet-je-klei-kneden\/\">That&#8217;s exactly why kneading is so important<\/a>: you make sure the clay is uniform throughout. If this is was not done properly, the clay particles will sinter at different speeds, resulting in cracks, holes, and unevenness.<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>During the firing, a lot of chemical reactions and processes take place. One of these is called sintering, and it is a crucial step in transforming fragile clay into sturdy ceramics.<\/p>\n","protected":false},"author":1,"featured_media":20430,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"What is sintering? | Cursist","_seopress_titles_desc":"What is sintering? Learn all about this process where ceramics are heated at high temperatures to make them sturdy and durable.","_seopress_robots_index":"","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":"","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-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":[214],"tags":[236],"class_list":["post-15593","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","tag-making-pottery-at-home"],"acf":[],"_links":{"self":[{"href":"https:\/\/staging.cursist-courses.com\/en\/wp-json\/wp\/v2\/posts\/15593","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staging.cursist-courses.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/staging.cursist-courses.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/staging.cursist-courses.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/staging.cursist-courses.com\/en\/wp-json\/wp\/v2\/comments?post=15593"}],"version-history":[{"count":1,"href":"https:\/\/staging.cursist-courses.com\/en\/wp-json\/wp\/v2\/posts\/15593\/revisions"}],"predecessor-version":[{"id":15594,"href":"https:\/\/staging.cursist-courses.com\/en\/wp-json\/wp\/v2\/posts\/15593\/revisions\/15594"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/staging.cursist-courses.com\/en\/wp-json\/wp\/v2\/media\/20430"}],"wp:attachment":[{"href":"https:\/\/staging.cursist-courses.com\/en\/wp-json\/wp\/v2\/media?parent=15593"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/staging.cursist-courses.com\/en\/wp-json\/wp\/v2\/categories?post=15593"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/staging.cursist-courses.com\/en\/wp-json\/wp\/v2\/tags?post=15593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}