CERAMIC INDUSTRY BENEFITS
- Dosage optimization. Raw material saving.
- Mineral phases determination that can modify / alter the production process of ceramic materials. Higher quality products.
- Optimization of temperature of sample preparation. Energy saving.
- Optimization of the synthetic parameters of ceramic pigments. Higher quality pigments.
- Series of pigments studies (evolution with the addition of colour modifiers).
- Advanced uses.
THE BENEFITS THAT XRD CAN BRING TO THE CERAMIC SECTOR ARE
Raw material saving
Through quality control of raw materials by X-ray diffraction, it is possible to know their mineralogy and reach a correct dosage of them. This is useful to tune up the dosages used and consequently an economical saving.
Some of the analyses that can be carried out for the control of raw materials are:
– Determination and quantification of crystalline phases, minor phases (impurities) and amorphous fraction.
Mineral phases determination that can modify / alter the production process of ceramic materials.
X-ray diffraction, combined with the Rietveld method, is a powerful tool that allows a better understanding of the production process of ceramic materials. Crystalline phases can be identified and quantified, and even the content of amorphous material can be determined. XRD in combination with x-ray fluorescence would even unravel the composition of the amorphous phase. With this, correlations can be established with parameters of the production process and with the final product properties and benefits.
Optimizar temperatura de síntesis de materiales cerámicos
The crystalline phase evolution with the temperature (thermodiffraction) can be followed with powder XRD. In this way, expansion processes, crystallization, amorphization, melting or thermal decomposition, etc. can be studied. With this, the temperature of synthesis of these materials could be optimized correctly.
Synthesis of ceramic pigments optimization. Get higher quality pigments
Through the X-ray diffraction the formation mechanisms of different types of inorganic pigments can be determined (zirconates, spinels, sphenes, etc.) and also the crystallochemistry of the main phase. With powder XRD your synthesis process can be optimized.
Series of pigments studies (evolution with the addition of colour modifiers).
By means of X-ray diffraction evolution of the unit cell can be followed according to the amount of colour modifiers added and determine / understand the incorporation mechanisms (isomorphic substitution, insertion in defects, etc …) as well as to determine the limits of solubility depending on the synthesis conditions.
You can also make studies of crystallite size and strains (microstructural analysis) and observe how it affects to the colour range in these series
Complex issues can be answered by different advanced uses. For example, for mass samples, multilayer ceramics, the layers can be studied using grazing incidence techniques to understand the mineralogical phases as a function of depth.