研究目的
To study the elastic moduli and related properties of binary (1 ? x)(TeO2) ? x(PbO) glasses prepared using melt quenching technique.
研究成果
The preparation of (1 ? x)(TeO2) ? x(PbO) glasses with high density and lower molar volume was achieved. The elastic and thermal properties were found to be influenced by the PbO content. The Rocherulle model was found to be more applicable than the Makishima–Mackenzie and bond compression models for these glasses.
研究不足
The study is limited to binary TeO2–PbO glasses with specific compositions. The theoretical models used may not fully capture the complexity of the glass structures.
1：Experimental Design and Method Selection:
The study employed the melt-quenching technique to prepare the glass samples. The amorphous nature was confirmed by XRD analyses. Density and molar volume were measured, and ultrasonic velocities were obtained using the pulse-echo method at 5 MHz. Elastic moduli were calculated from density and ultrasonic velocities measurements.
2：Sample Selection and Data Sources:
High purity oxides of TeO2 and PbO were used in specific molar proportions. The samples were homogenized, preheated, melted, quenched, and annealed to produce glass samples.
3：List of Experimental Equipment and Materials:
X-ray diffraction X’Pert Pro Panalytical PW 3040 MPD model for XRD analysis, densitometer model (MD-300S Densimeter) for density measurement, and RITEC RAM-5000 Snap System for ultrasonic velocities measurement.
4：Experimental Procedures and Operational Workflow:
The glass samples were prepared, cut, polished, and analyzed for their physical, elastic, and thermal properties using the aforementioned equipment.
5：Data Analysis Methods:
The elastic moduli and other properties were calculated using established equations from the measured density and ultrasonic velocities.
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