{"id":20660,"date":"2020-12-16T08:33:29","date_gmt":"2020-12-16T07:33:29","guid":{"rendered":"https:\/\/rinconeducativo.org\/efemerides\/16-de-diciembre-de-1954-tracy-hall-fabrica-diamantes-sinteticos-por-primera-vez-en-los\/"},"modified":"2024-12-20T11:58:26","modified_gmt":"2024-12-20T10:58:26","slug":"december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time","status":"publish","type":"re_efemeride","link":"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/","title":{"rendered":"December 16, 1954 \u2013 Tracy Hall manufactures synthetic diamonds for the first time at the General Electric Research Laboratories"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignleft is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"291\" src=\"https:\/\/wp2.rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy-500x291.jpg\" alt=\"Tracy Hall\" class=\"wp-image-7383\" style=\"width:400px;height:233px\" srcset=\"https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy-500x291.jpg 500w, https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy-1200x698.jpg 1200w, https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy-768x447.jpg 768w, https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy.jpg 1328w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div>\n\n\n<p>From an early age, Howard Tracy Hall always wanted to work for General Electric and only two months after receiving his doctorate, he began working at the Research Laboratory that this company had in Schenectady, New York. He joined the <em>\"Project Superpressure\"<\/em> team, led by engineer Anthony Nerad, intending to make a synthetic diamond.<\/p>\n\n\n\n<p>As on many other occasions, the circumstances surrounding Hall's synthesis have always been controversial. What is certain is that he manufactured synthetic diamonds on December 16, 1954, with a reproducible, verifiable, and witnessed process, using a press of his design.<\/p>\n\n\n\n<p>According to Hall's account, for almost 4 years, this group of half a dozen researchers had a succession of failed experiments, and impatience, rivalries, and divisions within the team appeared.<\/p>\n\n\n\n<p>He claimed his success was due to his determination to go his way with a redesign of the press employing a rock-shaped tie ring that exerted pressure on the sample chamber via two curved conical pistons. He called his first steel design \u201cPirate\u201d which didn't work, but he managed to get funding to use a harder material, Carboloy (cobalt dispersed tungsten carbide also known as Widia). However, his experiments were \u201crelegated\u201d to using a small, old, leaky 400-ton press instead of the newer, more expensive 1,000-ton press used by other team members. Therefore, the composition of the starting material in the sample chamber, the catalyst for the reaction, and the required temperature and pressure were no more than guesswork.<\/p>\n\n\n\n<p><img decoding=\"async\" style=\"width: 250px; height: 250px; margin-left: 20px; margin-right: 20px; float: right;\" src=\"http:\/\/rinconeducativo.org\/sites\/default\/files\/hall_tracy_prensa_diamantes.jpg\" alt=\"Tracy Hall y su prensa para fabricar diamantes\">The conditions of his experiment were:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Iron sulfide and a form of powdered carbon as the starting material<\/li>\n\n\n\n<li>Tantalum discs conduct electricity in the cell for heating<\/li>\n\n\n\n<li>Pressure = 100,000 atmospheres<\/li>\n\n\n\n<li>Temperature = 1,600\u00b0C<\/li>\n<\/ul>\n\n\n\n<p>It took about 38 minutes and when the sample was cracked open, the octahedral crystal assemblies were found on the metal disks of tantalum that had acted as a catalyst. In this way, the first synthetic diamonds were achieved, which current have many industrial applications.<\/p>\n\n\n\n<p>If you want to know more about this scientist, click on the following link: <a href=\"https:\/\/rinconeducativo.org\/en\/recursos-educativos\/tracy-hall-the-first-person-to-make-synthetic-diamonds\/\" target=\"_blank\" rel=\"noreferrer noopener\">Tracy Hall<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>December 16, 1954 \u2013 Tracy Hall manufactures synthetic diamonds for the first time at the General Electric Research Laboratories<\/p>\n","protected":false},"author":1088,"featured_media":11062,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[7560,7715],"mes":[7210],"clasificacion_anterior":[],"class_list":["post-20660","re_efemeride","type-re_efemeride","status-publish","has-post-thumbnail","hentry","tag-atomo-en","tag-periodic-table-en","mes-december"],"acf":{"fecha":"19541216"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>December 16, 1954 \u2013 Tracy Hall manufactures synthetic diamonds for the first time at the General Electric Research Laboratories - Rinc\u00f3n educativo<\/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:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"December 16, 1954 \u2013 Tracy Hall manufactures synthetic diamonds for the first time at the General Electric Research Laboratories - Rinc\u00f3n educativo\" \/>\n<meta property=\"og:description\" content=\"December 16, 1954 \u2013 Tracy Hall manufactures synthetic diamonds for the first time at the General Electric Research Laboratories\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/\" \/>\n<meta property=\"og:site_name\" content=\"Rinc\u00f3n educativo\" \/>\n<meta property=\"article:modified_time\" content=\"2024-12-20T10:58:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1328\" \/>\n\t<meta property=\"og:image:height\" content=\"773\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/\",\"url\":\"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/\",\"name\":\"December 16, 1954 \u2013 Tracy Hall manufactures synthetic diamonds for the first time at the General Electric Research Laboratories - Rinc\u00f3n educativo\",\"isPartOf\":{\"@id\":\"https:\/\/rinconeducativo.org\/es\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy.jpg\",\"datePublished\":\"2020-12-16T07:33:29+00:00\",\"dateModified\":\"2024-12-20T10:58:26+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/#primaryimage\",\"url\":\"https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy.jpg\",\"contentUrl\":\"https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy.jpg\",\"width\":1328,\"height\":773,\"caption\":\"Tracy Hall\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\/\/rinconeducativo.org\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Efem\u00e9rides\",\"item\":\"https:\/\/rinconeducativo.org\/es\/efemerides\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"December 16, 1954 \u2013 Tracy Hall manufactures synthetic diamonds for the first time at the General Electric Research Laboratories\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/rinconeducativo.org\/es\/#website\",\"url\":\"https:\/\/rinconeducativo.org\/es\/\",\"name\":\"Rinc\u00f3n educativo\",\"description\":\"Un proyecto del Foro Nuclear\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/rinconeducativo.org\/es\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"December 16, 1954 \u2013 Tracy Hall manufactures synthetic diamonds for the first time at the General Electric Research Laboratories - Rinc\u00f3n educativo","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/","og_locale":"en_US","og_type":"article","og_title":"December 16, 1954 \u2013 Tracy Hall manufactures synthetic diamonds for the first time at the General Electric Research Laboratories - Rinc\u00f3n educativo","og_description":"December 16, 1954 \u2013 Tracy Hall manufactures synthetic diamonds for the first time at the General Electric Research Laboratories","og_url":"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/","og_site_name":"Rinc\u00f3n educativo","article_modified_time":"2024-12-20T10:58:26+00:00","og_image":[{"width":1328,"height":773,"url":"https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/","url":"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/","name":"December 16, 1954 \u2013 Tracy Hall manufactures synthetic diamonds for the first time at the General Electric Research Laboratories - Rinc\u00f3n educativo","isPartOf":{"@id":"https:\/\/rinconeducativo.org\/es\/#website"},"primaryImageOfPage":{"@id":"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/#primaryimage"},"image":{"@id":"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/#primaryimage"},"thumbnailUrl":"https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy.jpg","datePublished":"2020-12-16T07:33:29+00:00","dateModified":"2024-12-20T10:58:26+00:00","breadcrumb":{"@id":"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/#primaryimage","url":"https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy.jpg","contentUrl":"https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/12\/hall_tracy.jpg","width":1328,"height":773,"caption":"Tracy Hall"},{"@type":"BreadcrumbList","@id":"https:\/\/rinconeducativo.org\/en\/anniversaries\/december-16-1954-tracy-hall-manufactures-synthetic-diamonds-first-time\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Portada","item":"https:\/\/rinconeducativo.org\/en\/"},{"@type":"ListItem","position":2,"name":"Efem\u00e9rides","item":"https:\/\/rinconeducativo.org\/es\/efemerides\/"},{"@type":"ListItem","position":3,"name":"December 16, 1954 \u2013 Tracy Hall manufactures synthetic diamonds for the first time at the General Electric Research Laboratories"}]},{"@type":"WebSite","@id":"https:\/\/rinconeducativo.org\/es\/#website","url":"https:\/\/rinconeducativo.org\/es\/","name":"Rinc\u00f3n educativo","description":"Un proyecto del Foro Nuclear","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/rinconeducativo.org\/es\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/rinconeducativo.org\/en\/wp-json\/wp\/v2\/re_efemeride\/20660","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rinconeducativo.org\/en\/wp-json\/wp\/v2\/re_efemeride"}],"about":[{"href":"https:\/\/rinconeducativo.org\/en\/wp-json\/wp\/v2\/types\/re_efemeride"}],"author":[{"embeddable":true,"href":"https:\/\/rinconeducativo.org\/en\/wp-json\/wp\/v2\/users\/1088"}],"version-history":[{"count":4,"href":"https:\/\/rinconeducativo.org\/en\/wp-json\/wp\/v2\/re_efemeride\/20660\/revisions"}],"predecessor-version":[{"id":38023,"href":"https:\/\/rinconeducativo.org\/en\/wp-json\/wp\/v2\/re_efemeride\/20660\/revisions\/38023"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rinconeducativo.org\/en\/wp-json\/wp\/v2\/media\/11062"}],"wp:attachment":[{"href":"https:\/\/rinconeducativo.org\/en\/wp-json\/wp\/v2\/media?parent=20660"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rinconeducativo.org\/en\/wp-json\/wp\/v2\/tags?post=20660"},{"taxonomy":"mes","embeddable":true,"href":"https:\/\/rinconeducativo.org\/en\/wp-json\/wp\/v2\/mes?post=20660"},{"taxonomy":"clasificacion_anterior","embeddable":true,"href":"https:\/\/rinconeducativo.org\/en\/wp-json\/wp\/v2\/clasificacion_anterior?post=20660"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}