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Owing to its wear resistance and mechanical performance, glass-ceramics are often favoured in dental applications. However, prolonged immersion can cause material degradation and reduced strength. Typically, adding fluoride is believed to improve their properties. Hence, this work prepared fluoride-free and fluoride glassceramics via the melt-quenching technique. The samples were assessed after soaking PBS solution for 14 days. The fluoride sample exhibited a higher hardness of HV = 653 ± 2.80 and toughness of 3.37 ± 0.01 MPa⋅m1/2. This experimental results were compared to the human dentine (HV = 61.2), human enamel (HV = 510) and commercial dental glass-ceramics (HV = 408–663). The fluoride samples showed higher bioactivity, evident from the crystal formation in micrographs. Therefore, the prepared samples exhibit a promising potential as new materials for dental crown applications.

In this paper, a series of [Sm2O3]x[(ZnO)0.5 (B2O3)0.1 (SLS)0.4]1-x, where × = 0, 0.01, 0.02, and 0.03 in weight fraction was fabricated via melt-quenching method. The influence of the samarium ion (Sm3+) concentration on the structural and optical properties was investigated. X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) confirmed the samples’ glassy (amorphous) behavior. The optical absorption intensity enhanced as the dopant increased, whereas the optical band gap reduced with the progression of Sm3+ concentration. The sample’s refractive index and Urbach energy range from 2.145 to 2.203 and 0.682 eV to 0.713 eV, respectively. From the photoluminescence studies, 3 wt% Sm3+-doped samples indicate the most intense emission in the orange-reddish region among the other samples. The calculated CIE coordinates for Sm3+ doped ZnO–B2O3–SLS glasses are approximate (0.57, 0.43), near the Amber LED NSPAR 70BS produced by Nichia Corporation. In addition, the CCT of the Sm3+-doped samples at about ~ 1750 K reveals prepared glass samples have bright orange-reddish emission. These findings indicate that Sm3+-doped in ZnO-B2O3-SLS has enhanced its orange-reddish emission and potential as an orange-reddish glass phosphor material in optoelectronic devices such as glass phosphor for LEDs.

In this paper, a series of [Sm2O3]x[(ZnO)0.5 (B2O3)0.1 (SLS)0.4]1-x, where × = 0, 0.01, 0.02, and 0.03 in weight fraction was fabricated via melt-quenching method. The influence of the samarium ion (Sm3+) concentration on the structural and optical properties was investigated. X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) confirmed the samples’ glassy (amorphous) behavior. The optical absorption intensity enhanced as the dopant increased, whereas the optical band gap reduced with the progression of Sm3+ concentration. The sample’s refractive index and Urbach energy range from 2.145 to 2.203 and 0.682 eV to 0.713 eV, respectively. From the photoluminescence studies, 3 wt% Sm3+-doped samples indicate the most intense emission in the orange-reddish region among the other samples. The calculated CIE coordinates for Sm3+ doped ZnO–B2O3–SLS glasses are approximate (0.57, 0.43), near the Amber LED NSPAR 70BS produced by Nichia Corporation. In addition, the CCT of the Sm3+-doped samples at about ~ 1750 K reveals prepared glass samples have bright orange-reddish emission. These findings indicate that Sm3+-doped in ZnO-B2O3-SLS has enhanced its orange-reddish emission and potential as an orange-reddish glass phosphor material in optoelectronic devicessuch as glass phosphor for LEDs.

Samarium (III) oxide doped zinc-borosilicate glasses were successfully fabricated using the melt-quenching method by using SLS glass as a source of SiO2. With the progression of Sm3+ concentration, the density of the sample improved from 3.423 g/cm3 to 3.495 g/cm3, while the molar volume raised from 21.760 cm3/mol to 23.665 cm3/mol. The XRD analysis verified the samples’ amorphous nature. Besides, the longitudinal and shear velocity range between 5265.15 and 5706.244 m/s and 2900.247–3039.522 m/s, respectively. The elastic moduli for longitudinal, shear, bulk, and Young’s modulus range between 96.389–111.457 GPa, 29.247–31.624 GPa, 56.493–69.292 GPa, and 75.000–82.345, respectively. Furthermore, with the increment of Sm3+ concentration, the sample’s Poisson’s ratio reduces from 0.302 to 0.270, indicating a progressive rise in cross-link density due to increased glass ionicity. Moreover, the fractal bond connectivity and fugacity rise from 1.826 to 2.170 and 0.060 to 0.083, respectively, with the progression of Sm3+ concentration. The findings imply that the Sm3+ dopant acts as a glass modifier, impacting the elastic performance of the zinc-borosilicate glasses.