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Information × Registration Number 0307U001351, 0105U003066 , R & D reports Title Comparative research of influence of sintered and fused MgO stabilized zirconia on properties of vibro products and the trial batch production of crucibles for induction melting of platinum and it's alloys. popup.stage_title Порівняльні дослідження впливу випаленого та плавленого діоксиду цирконію, стабілізованого MgO, на властивості вібролитих виробів та випуск дослідних партій тиглів для плавки платини та її сплавів. Head Shulik I., Registration Date 22-02-2007 Organization The open joint stock company " The Ukrainian research institute of refractories named A.S.Berezhnoy" popup.description2 The subject of investigation - vibrocast products from ZrО2, stabilized by MgO, for melting of metals of platinum group. The purpose of the work - perfection of the technology of vibrocast products from ZrО2, stabilized by MgO. Methods of research - chemical, roentgen phase, methods of determination of physical-mechanical properties factors of refractory products, procedure of flowability determination at vibration of boundary-concentrated thixotropic granulous masses. It is established, that the use of sintered zirconia stabilized by MgO provides the receipt of the products, characterized by higher value of cold crushing strength, but yielding concerning thermal shock resistance to analogous products from fused zirconia, stabilized by MgO. The opportunity of thermal shock resistance increase of products by introduction of monoclinic zirconia addition in the amount which doesn't exceed 20 % for masses with the maximal grain size of 1,5 mm and doesn't exceed 10 % for masses with the maximal size of 1 mm is established. For masses with optimal grain composition from fused zirconia stabilized by MgO, it is established, that the introduction of ГКЖ-11 addition in the amount of 0,15-0,175 % provides their maximal flowability at vibration. On the pilot production, trial lots of crucibles on the basis of ZrO2, stabilized by CaO or Y2O3 are produced. To continue the work towards further technology perfection of vibrocast fired crucibles from stabilized zirconia. Product Description popup.authors popup.nrat_date 2020-04-02 Close