{"id":128473,"date":"2023-08-30T14:25:00","date_gmt":"2023-08-30T06:25:00","guid":{"rendered":"https:\/\/www.alpapowder.com\/128473\/"},"modified":"2023-08-30T14:25:01","modified_gmt":"2023-08-30T06:25:01","slug":"toz-malzemelerin-cok-ince-ogutulmesinden-sonra-10-buyuk-degisiklik","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/tr\/128473\/","title":{"rendered":"Toz malzemelerin \u00e7ok ince \u00f6\u011f\u00fct\u00fclmesinden sonra 10 b\u00fcy\u00fck de\u011fi\u015fiklik!"},"content":{"rendered":"

\"\"<\/p>\n

K\u0131rma i\u015flemi s\u0131ras\u0131nda k\u0131r\u0131lan malzemelerde meydana gelen \u00e7e\u015fitli de\u011fi\u015fiklikler, kaba k\u0131rma i\u015flemine g\u00f6re \u00f6nemsiz olmakla birlikte, ultra ince k\u0131rma i\u015flemi i\u00e7in k\u0131rma yo\u011funlu\u011funun y\u00fcksek olmas\u0131, k\u0131rma s\u00fcresinin uzun olmas\u0131, malzeme \u00f6zelliklerinde b\u00fcy\u00fck de\u011fi\u015fiklikler olmas\u0131 gibi nedenlerden dolay\u0131 \u00f6nemsizdir. \u00f6nemli g\u00f6r\u00fcn\u00fcyor. Mekanik ultra ince k\u0131rman\u0131n neden oldu\u011fu k\u0131r\u0131lan malzemenin kristal yap\u0131s\u0131nda ve fiziksel ve kimyasal \u00f6zelliklerinde meydana gelen bu de\u011fi\u015fikli\u011fe, k\u0131rma i\u015fleminin mekanokimyasal etkisi denir.<\/p>\n

1. Par\u00e7ac\u0131k boyutunda de\u011fi\u015fiklikler<\/p>\n

Ultra ince \u00f6\u011f\u00fctme sonras\u0131nda toz malzemedeki en belirgin de\u011fi\u015fiklik daha ince par\u00e7ac\u0131k boyutudur. Farkl\u0131 par\u00e7ac\u0131k boyutlar\u0131na g\u00f6re, ultra ince tozlar genellikle \u015fu \u015fekilde ayr\u0131l\u0131r: mikron seviyesi (partik\u00fcl boyutu 1 ~ 30 \u03bcm), mikron alt\u0131 seviye (partik\u00fcl boyutu 1 ~ 0,1 \u03bcm) ve nano seviye (partik\u00fcl boyutu 0,001 ~ 0,1 \u03bcm).<\/p>\n

2. Kristal yap\u0131daki de\u011fi\u015fiklikler<\/p>\n

Ultra ince k\u0131rma i\u015flemi s\u0131ras\u0131nda, g\u00fc\u00e7l\u00fc ve kal\u0131c\u0131 mekanik kuvvet nedeniyle, toz malzeme de\u011fi\u015fen derecelerde kafes distorsiyonuna u\u011frar, tane boyutu k\u00fc\u00e7\u00fcl\u00fcr, yap\u0131 bozulur, y\u00fczeyde amorf veya amorf maddeler olu\u015fur ve hatta Polikristalin d\u00f6n\u00fc\u015f\u00fcm . Bu de\u011fi\u015fiklikler X-\u0131\u015f\u0131n\u0131 k\u0131r\u0131n\u0131m\u0131, k\u0131z\u0131l\u00f6tesi spektroskopi, n\u00fckleer manyetik rezonans, elektron paramanyetik rezonans ve diferansiyel kalorimetri ile tespit edilebilir.<\/p>\n

 <\/p>\n

3. Kimyasal bile\u015fimdeki de\u011fi\u015fiklikler<\/p>\n

G\u00fc\u00e7l\u00fc mekanik aktivasyon nedeniyle malzemeler, ultra ince k\u0131rma i\u015flemi s\u0131ras\u0131nda belirli ko\u015fullar alt\u0131nda do\u011frudan kimyasal reaksiyonlara girer. Reaksiyon t\u00fcrleri aras\u0131nda ayr\u0131\u015fma, gaz-kat\u0131, s\u0131v\u0131-kat\u0131, kat\u0131-kat\u0131 reaksiyonu vb. yer al\u0131r.<\/p>\n

 <\/p>\n

4. \u00c7\u00f6z\u00fcn\u00fcrl\u00fckteki de\u011fi\u015fiklikler<\/p>\n

Toz haline getirilmi\u015f kuvars, kalsit, kasiterit, korindon, boksit, kromit, manyetit, galen, titanomagnetit, volkanik k\u00fcl, kaolin<\/a> vb.nin ince \u00f6\u011f\u00fctme veya ultra ince \u00f6\u011f\u00fctme sonras\u0131nda inorganik asit i\u00e7erisinde \u00e7\u00f6z\u00fclmesi Hem h\u0131z hem de \u00e7\u00f6z\u00fcn\u00fcrl\u00fck artar.<\/p>\n

 <\/p>\n

5. Sinterleme \u00f6zelliklerindeki de\u011fi\u015fiklikler<\/p>\n

 <\/p>\n

6. Katyon de\u011fi\u015fim kapasitesindeki de\u011fi\u015fiklikler<\/p>\n

Baz\u0131 silikat mineralleri, \u00f6zellikle bentonit ve kaolin<\/a> gibi baz\u0131 kil mineralleri, ince \u00f6\u011f\u00fctme veya \u00e7ok ince \u00f6\u011f\u00fctme sonras\u0131nda katyon de\u011fi\u015fim kapasitesinde belirgin de\u011fi\u015fiklikler g\u00f6sterir.<\/p>\n

 <\/p>\n

7. Hidrasyon performans\u0131 ve reaktivitedeki de\u011fi\u015fiklikler<\/p>\n

\u0130nce \u00f6\u011f\u00fctme, yap\u0131 malzemelerinin haz\u0131rlanmas\u0131nda \u00e7ok \u00f6nemli olan kalsiyum hidroksit malzemelerinin reaktivitesini geli\u015ftirebilir. \u00c7\u00fcnk\u00fc bu malzemeler inerttir veya hidrasyon i\u00e7in yeterince aktif de\u011fildir.<\/p>\n

 <\/p>\n

8. Elektriksel de\u011fi\u015fiklikler<\/p>\n

\u0130nce \u00f6\u011f\u00fctme veya ultra ince \u00f6\u011f\u00fctme ayn\u0131 zamanda minerallerin y\u00fczey elektriksel ve dielektrik \u00f6zelliklerini de etkiler. \u00d6rne\u011fin biyotitin darbe almas\u0131, ezilmesi ve \u00f6\u011f\u00fct\u00fclmesinden sonra izoelektrik noktas\u0131 ve y\u00fczey elektrokinetik potansiyeli (Zeta potansiyeli) de\u011fi\u015fecektir.<\/p>\n

 <\/p>\n

9. Yo\u011funluktaki de\u011fi\u015fiklikler<\/p>\n

Do\u011fal zeolitin (esas olarak klinoptilolit, mordenit ve kuvarstan olu\u015fur) ve sentetik zeolitin (esas olarak mordenit) planeter bilyeli de\u011firmende \u00f6\u011f\u00fct\u00fclmesinden sonra, bu iki zeolitin yo\u011funlu\u011funun farkl\u0131 \u015fekilde de\u011fi\u015fti\u011fi bulunmu\u015ftur.<\/p>\n

 <\/p>\n

10. Kil s\u00fcspansiyonlar\u0131n\u0131n ve hidrojellerin \u00f6zelliklerindeki de\u011fi\u015fiklikler<\/p>\n

Islak \u00f6\u011f\u00fctme, kilin plastisitesini ve kuru e\u011filme mukavemetini art\u0131r\u0131r.<\/p>\n

 <\/p>\n

K\u0131saca, hammaddelerin \u00f6zelliklerinin, besleme partik\u00fcl b\u00fcy\u00fckl\u00fc\u011f\u00fcn\u00fcn ve k\u0131rma veya aktivasyon s\u00fcresinin yan\u0131 s\u0131ra, malzemelerin mekanokimyasal de\u011fi\u015fikliklerini etkileyen fakt\u00f6rler aras\u0131nda ekipman tipi, k\u0131rma y\u00f6ntemi, k\u0131rma ortam\u0131 veya atmosferi, k\u0131rma yard\u0131mc\u0131lar\u0131 vb. de yer al\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":"

Ultra ince \u00f6\u011f\u00fctme sonras\u0131nda toz malzemedeki en belirgin de\u011fi\u015fiklik daha ince par\u00e7ac\u0131k boyutudur.<\/p>\n","protected":false},"author":7,"featured_media":128435,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[851],"tags":[],"class_list":["post-128473","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-endustri-haberleri-tr"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts\/128473","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/comments?post=128473"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts\/128473\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/media\/128435"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/media?parent=128473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/categories?post=128473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/tags?post=128473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}