研究目的
Investigating the effects of erbium oxide (Er2O3) doping on the structural properties of Urfa stone (US).
研究成果
The study concluded that doping Urfa stone with Er2O3 affects its structural properties, as evidenced by the presence of new crystalline phases and shifts in photoluminescence emission and excitation bands. The introduction of electron-donating groups produced a clear shift in the photoluminescence emission peaks for the Er2O3-doped US samples.
研究不足
The study focused on the structural properties of Er2O3-doped US samples and did not explore other potential applications or the mechanical properties of the doped stone.
1：Experimental Design and Method Selection:
The study involved doping Urfa stone with varying amounts of Er2O3 using mechanical alloying methods and sintering the samples at 1000 °C for 1 h. The structural properties were then analyzed using XRD, FTIR, and photoluminescence methods.
2：Sample Selection and Data Sources:
Solid US was powdered using an agate mortar, and its elemental composition was determined using ICP methods. Varying amounts of Er2O3 (5, 10, 20, 30, and 40%) were added to the US powder.
3：List of Experimental Equipment and Materials:
Agate mortar, inductive coupling plasma (ICP) methods, X-ray diffraction (XRD) system (Rigaku D/MAX 2000 diffractometer), Fourier-transform infrared spectrometry (FTIR) spectrometer (Perkin Elmer), and photoluminescence spectrometer (Perkin Elmer LS55).
4：5).
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The US was powdered, doped with Er2O3, sintered, and then analyzed using XRD, FTIR, and photoluminescence methods.
5：Data Analysis Methods:
XRD patterns were analyzed to identify crystalline phases, FTIR spectra were obtained to analyze absorption bands, and photoluminescence spectra were analyzed to observe shifts in emission and excitation bands.
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