{"id":20354,"date":"2015-03-07T12:58:16","date_gmt":"2015-03-07T12:58:16","guid":{"rendered":"https:\/\/www.its.ac.id\/news\/2015\/03\/07\/manfaatkan-silikat-munasir-raih-gelar-doktor\/"},"modified":"2015-03-07T12:58:16","modified_gmt":"2015-03-07T12:58:16","slug":"manfaatkan-silikat-munasir-raih-gelar-doktor","status":"publish","type":"post","link":"https:\/\/www.its.ac.id\/news\/manfaatkan-silikat-munasir-raih-gelar-doktor\/","title":{"rendered":"Manfaatkan Silikat, Munasir Raih Gelar Doktor"},"content":{"rendered":"<div align=&quot;justify&quot;>Munasir menerangkan hingga saat ini problematika yang belum terpecahkan yakni tentang sifat korosif alumunium yang makin menurun akibat proses <em>over-aging<\/em>. Hal tersebut terjadi akibat pemanasan alumunium pada temperatur yang amat tinggi, kemudian didinginkan mendadak. &quot;Setelah didinginkan, panasnya dinaikkan lagi dan ditahan temperaturnya. Sering terjadi <em>over-aging <\/em>ini mengakibatkan sifat mekanis alumunium pun semakin menurun tingkat kekerasannya,&quot; terang dosen Fisika kelahiran Tuban ini.<\/p>\n<p>Untuk mengatasi hal tersebut, Munasir melakukan riset dengan efisiensi biaya, pemanfaatan potensi sumber mineral alam yang berlimpah, serta memperhitungkan waktu pengerjaan. Dimulai dari tahapan awal yakni sintesis SiO<sub>2<\/sub> (silikat) dengan metode kontinu (hidrotermal-kopresipitasi). &quot;Tahapan awal adalah ekstraksi pasir kuarsa menjadi pertikel berukuran nano dengan mengikat senyawa alkali,&quot; ujarnya.<\/p>\n<p>Selanjutnya, partikel nano tersebut dimanfaatkan untuk komposit alumunium dengan menggunakan perbandingan pada medium pencampuran. Untuk membuat partikel nano, proses metalurgi serbuk pun dilakukan. &quot;Porositas dari serbuk alumunium dalam bentuk pelet ini memiliki ukuran yang pas dengan nano. Sehingga, dengan memasukkan partikel SiO<sub>2<\/sub>, kita tidak lagi melakukan <em>over-aging<\/em>,&quot; papar pria yang telah memiliki empat putra ini. <\/p>\n<p>Tahap yang terakhir adalah pengujian sampel komposit dengan menggunakan pendekatan polarisasi linier. Dalam tahapan terakhir tersebut, dilakukan analisis performa korosi.Hal tersebut dilihat dari perilaku hingga ketahanannya dalam medium geotermal. &#8221;Tentunya ditemukan perubahan dari sebelum diekspose dan setelah diekspose,&quot; tambahnya.<\/p>\n<p>Berbagai tahap dilakukan, mulai dari pencampuran hingga kalsinasi. Alhasil, saat proses paduan pembentukan komposit Alumunium terjadi peningkatan sifat mekanik dan korosi.&nbsp; &quot;Hasilnya ternyata permanfaatan partikel SiO<sub>2<\/sub> untuk memperkuat komposit Alumunium mampu meningkatkan sifat mekanik dan korosi,&quot; pungkasnya. (riz\/sha)<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Meraih gelar doktor di Jurusan Fisika dengan predikat sangat memuaskan akhirnya diraih Dr Munasir SSi MSi, Jumat (6\/3). Tak ayal, riset tentang <em>filler<\/em> komposit Alumunium dari bahan alam pasir kuarsa telah dipublikasi dalam jurnal ilmiah nasional, hingga internasional,<\/p>\n","protected":false},"author":1,"featured_media":20355,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14],"tags":[],"class_list":["post-20354","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-berita-utama"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Manfaatkan Silikat, Munasir Raih Gelar Doktor - ITS News<\/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.its.ac.id\/news\/manfaatkan-silikat-munasir-raih-gelar-doktor\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Manfaatkan Silikat, Munasir Raih Gelar Doktor - ITS News\" \/>\n<meta property=\"og:description\" content=\"Meraih gelar doktor di Jurusan Fisika dengan predikat sangat memuaskan akhirnya diraih Dr Munasir SSi MSi, Jumat (6\/3). 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