Effect of Al2O3 content on residual stress and properties of CAS glass-ceramics

Abstract

The structure and properties of the glass-ceramics were tested with X-ray diffraction testing instrument, correlative software, and other modern testing means. Then the effect of Al 2 O 3 content on internal stresses in CaO-Al 2 O 3 -SiO 2 glass-ceramics was studied deeply. In order to study the relationship of Al 2 O 3 to the residual stress of CaO-Al 2 O 3 -SiO 2 glass-ceramics, X-ray diffraction "sin 2 ψ" was used. The means utilized the x radial incidence produced from cathode radial tube, and took the space between crystals as measurement of strain. When the stresses produced, the space between crystals changed and the diffraction peak moved during Bragg diffraction. The magnitude of movement is related to the stresses. The experimental results show the residual stress is considerably high and Al 2 O 3 can influence the mechanical properties of this material hugely.

Effect of Al2O3 on the formation of color centers and CdSe/Cd1−xZnxSe quantum dots in SiO2–Na2O–ZnO glasses

“…The optical basicity ( Λ th ) of glasses can be calculated out using the following formula,where X A a+ , X B b+ , X C c+ , … are the equivalent fractions of the cations A a+ , B b+ , C c+ , … and γ A , γ B , γ C , … are the basicity moderating parameters of these cations . According to the calculation using Equation , the optical basicity of glasses as a function of Al 2 O 3 amount was shown in Figure , together with those data reported by previous studies of the effect of Al 2 O 3 on the properties of silicate glasses . With more Al 2 O 3 addition, the basicity of the glass increased.…”

Analysis and Mechanism Study of Residual Stress during the Spontaneous Crystallisation Process of Molten Titanium-Containing Blast Furnace Slag

“…In their study, they found that the residual stress in CAS glass ceramics initially decreases but then increases rapidly. Subsequently, XIE Jun, LONG Xinjiang et al [10] investigated the impact of the Al 2 O 3 content on residual stress in microcrystalline glass composed of CaO-Al 2 O 3 -SiO 2 . The findings of this study revealed that an increase in the Al 2 O 3 content leads to a reduction in the β-wollastonite crystal phase and a lower residual stress.…”