Ceramics firing, heat treatment of metals and other process parameters are often required to determine the use of phase diagrams to guide. The production of phase diagrams is a very rigorous and very time-consuming work. The quenching and cooling method is one of the most commonly used and accurate methods to study the state diagram of a system (phase diagram) under static conditions. Through this experiment, students can master one of the experimental methods to study phase equilibrium under static conditions - quenching and cooling method to study phase equilibrium and its advantages and disadvantages, master the production method of oil immersion specimen and the use of microscope, and verify the phase diagram of the Na2O-SiO2 system.
Major equipment: tube resistance furnace, temperature controller, polarizing microscope (with the experiment 9 **** with).
The need for additional equipment: 10 sets of tube resistance furnace, temperature controller 10 sets.
6) thermal analysis experiments
Differential thermal analysis is the study of materials in the heating process dehydration, phase change, decomposition, melting and other physical and chemical changes in a common analytical method. The use of differential thermal curves in the process can determine the firing system of the material and the transformation of glass and controlled crystallization and other process parameters, but also qualitative and quantitative analysis of minerals. The coefficient of thermal expansion of materials is an important index for evaluating the thermal stability of materials at high temperatures, and it is also an important basis for whether different kinds of materials can be used in conjunction with each other. Through this experiment, students can understand the basic principles and instrumentation of differential thermal analysis, learn to use differential thermal analysis to identify unknown minerals, and master the determination of the coefficient of thermal expansion of materials and the factors affecting the results.
Major equipment: differential thermal expansion analyzer.
Existing equipment: 1 LCP-1 differential thermal expansion analyzer (need to be upgraded to a microcomputer control, and WCP-2 same function).
The need to add equipment: WCP-2 microcomputer differential thermal expansion meter 2 units.
7) microstructure observation of materials
The microstructure of materials is closely related to the physicochemical changes in the preparation of materials, through the microstructure analysis, you can organically link the material's "composition - process - structure - performance" and other factors, the design of the material properties, the development of new materials have an important guiding role. Important role in guiding the design of material properties and the development of new materials. The experiment allows students to learn to use the microscope to analyze the microstructure of minerals, master microphotography technology, and observe the microstructure of materials with a metallurgical microscope.
Major equipment: electron microscope, digital metallographic microscope, metallographic microscope, metallographic cutting machine, metallographic test grinding and polishing machine, inlay machine.
Existing equipment: KYKY2000 electronic microscope 1 (need to remodel), 22 sets of metallurgical microscopes
To add equipment: KYKY2000 electronic microscope function upgrades, 2 sets of 4XB-Z digital metallurgical microscope, 4XB metallurgical microscope 10 sets of PA-2 metallurgical test grinding and polishing machine 4 sets of 2 sets of internal cutting machine, inlay machines 2 sets.
8) crystal monomorphic analysis
Crystal monomorphic awareness is the basis of crystal polymorphic analysis, the common crystal crystal form has 47 kinds of monomorphic. By allowing students to analyze the morphology and characteristics of monomorphs, they can understand the crystal system crystal families and master the structure of crystals.
Major equipment: 47 kinds of monomorphic models, mineral models, mineral specimens.
Existing equipment: 3 sets of 47 monomorphic models, 2 sets of mineral models, 3 sets of mineral specimens.
Required additional equipment: 15 sets of 47 monomorphic models, 15 sets of mineral models; 15 sets of mineral specimens.
9) Observation and Identification of Crystals and Minerals under Polarized Light Microscope
Polarized light microscope is a commonly used instrument to understand the structure of crystals, through the experiment, students will be familiar with the structure of the microscope, master the operation of the microscope, and differentiate between autogenous crystals, semi-autogenous crystals, and other crystals under the microscope through observation.
Major equipment: polarized light microscope, mineral specimens (with the experiment 8 **** with).
Existing equipment: 26 polarizing microscopes (of which 10 have been eliminated),
The need for additional equipment: 15 XP-7 polarizing microscopes (with ceramic triple-phase thin section of 60 slices, glass nodule thin section of 60 slices); AXIOPLAN2 multifunctional microscope 1.
10) organic and inorganic compounds Raman spectroscopy
Raman spectroscopy analyzer using laser vibration spectroscopy for qualitative and quantitative analysis of substances, through the experiment allows students to familiarize with the principle of the instrument, structure and use.
Required supplementary equipment: Raman spectral analyzer