Tenders Are Invited For Research Work Covering The Characteristics Of Ceramic Powder: Corundum, Zirconium Dioxide, Silicon Carbon, Boron Carbon And Cerium, As Well As The Characteristics Of Sinters Obtained On The Basis Of Raw Materials - Mainly Corundum Zta, Silicon Nitride And Silicon Carbon.

1. The Subject Of The Order Is A Service In The Form Of Research Work, Including The Characterization Of Ceramic Powders: Corundum, Zirconium Dioxide, Silicon Carbide, Boron Carbide And Cerium Oxide, As Well As The Characterization Of Sinters Obtained On The Basis Of The Above Raw Materials - In Particular Corundum Materials, Zta (Zirconia Toughened Alumina), Silicon Nitride And Silicon Carbide. The Scope Of Work Also Includes Determining The Relationships And Correlations Between The Phase Composition And Microstructure And Mechanical And Thermomechanical Properties Of The Obtained Ceramic Materials. In The Case Of Materials Based On Silicon Carbide, The Scope Of Work Also Includes Determining The Relationship Between Technological Conditions, Formulation Composition, Phase Composition, Microstructure And The Properties Of The Obtained Materials. The Order Is Divided Into Three Stages.2.Detailed Description Of The Subject Of The Order.2.1. Stage I: Characterization Of Ceramic Powders And Obtained Sinters.1. Characteristics Of Ceramic Powders Or Their Mixtures. The Scope Of The Research Includes:• Determination Of The Phase Composition By X-Ray Diffraction (Xrd) - In The Amount Of 10 Powders;• Measurement Of The Zeta Potential - In The Amount Of 10 Powders;• Determination Of The Specific Surface Of Powders By The Multi-Point Bet Adsorption Isotherm Method - In The Amount Of 10 Powders;• Characterization Of The Morphology Of Powders By Scanning Electron Microscopy (Sem) - In The Amount Of 10 Powders.2. Characteristics Of The Obtained Sinters. The Scope Of The Research Includes:• Determination Of The Phase Composition By X-Ray Diffraction (Xrd) - In The Number Of 40 Measurements;• Determination Of The Microstructure Of Sinters By Scanning Electron Microscopy (Sem), Along With Stereological Characterization - In The Number Of 40 Measurements;• Determination Of The Fracture Toughness Using The Senb Method Or By Making An Impression With A Vickers Pyramid And Measuring The Length Of The Cracks Formed - In The Number Of 40 Different Types Of Materials;• Determination Of The Mechanical Strength To Bending – 40 Different Materials;• Determination Of Youngs Modulus As A Function Of Temperature – 4 Measurements;• Hardness Determination – 40 Different Materials;• Determination Of Thermal Shock Resistance – 4 Different Materials.3. Preparation And Interpretation Of Resultsthe Preparation Of Results Together With A Report Should Include An Analysis And Description Of The Relationship Between The Phase Composition, Microstructure And The Mechanical And Thermomechanical Properties Of The Tested Ceramic Materials. In The Case Of Materials Based On Silicon Carbide, The Study Should Additionally Include Determining The Relationship Between Technological Conditions, Formulation Composition, Phase Composition And Microstructure, And The Properties Of The Obtained Sinters.2.2. Stage Ii: Characterization Of Corundum Shapes Produced On A Technical Scale. The Scope Of R