Search academic texts

Information × Registration Number 0221U105329, 0116U005332 , R & D reports Title The creation of new high-tech materials based on boron carbide and the development of technological principles receipt of these products with high service characteristics popup.stage_title Head Volkogon Volodymyr M., Доктор технічних наук Registration Date 29-06-2021 Organization Institute of Problems of Materials Science named after IM Frantsevich of the National Academy of Sciences of Ukraine popup.description2  A complex of technological work was carried out to determine the composition of the charge and the conditions for obtaining wear-resistant hot-pressed ceramics based on boron carbide. It has been established that the optimal physical and mechanical characteristics are possessed by a ceramic material based on boron carbide obtained from a charge containing 15 wt% chromium oxide, 2 wt% tantalum oxide, and 5 wt% amorphous carbon. The flexural strength of the material is 820 MPa, and the fracture toughness coefficient is 6.8 MPa · m1 / 2. Experimental hot-pressed beaters from the developed ceramics were tested under production conditions on an MC-1.25 mill for grinding sand. It was found that their service life exceeds the service life of serial production beats by 10-12 times. Product Description popup.authors Avramchuk Ivan I Avramchuk Svetlana K Zablodsky Volodymyr O Kravchyk Andriy V. Pavlychuk Tatiana V Skrynʹka Andriy O popup.nrat_date 2021-06-29 Close