Materials
·
2024
·Vol. 17
·期 5
·1056
·
IF 3.1
Xuefeng Bai,Han Zhang,Yu Tu,Sijia Sun,Yangzi Li,Hao Ding,Ming Bai,Liang Chang,Jianmeng Zhang
In order to enhance the degree of binding reaction of TiO2in titanium-containing ceramic glazes and prevent the reaction of its transformation into rutile to eliminate the yellowing phenomenon of the glaze surface, an apatite–TiO2composite opacifier (ATO) was prepared through the mechanical grinding of hydroxyapatite and anatase TiO2. The properties, opacification mechanism, and yellowing inhibition of the prepared ceramic glazes were studied. The results show that the ATO is characterized by a uniform coating of TiO2on the surface of the apatite and the formation of close chemical bonding between the apatite and TiO2. The ceramic glaze surface when using an ATO has a white appearance and excellent opacification performance. When an ATO was used, the L*, a*, and b* values of the glaze were 89.99, −0.85, and 3.37, respectively, which were comparable to those of a ZrSiO4glaze (L*, a*, and b*were 88.24, −0.02, and 2.29, respectively). The opacification of the glaze was slightly lower than that of the TiO2glaze (L* value was 92.13), but the appearance changed from yellow to the white of the TiO2glaze (b* value was 9.18). The ceramic glaze layer when using an ATO mainly consists of titanite, glass phase, and a small amount of quartz, and the opacification mechanism is the crystallization of the generated titanite. ATOs can play an active role in solving the critical problem that arises when TiO2replaces ZrSiO4as an opacifier.
研究领域:
材料科学
·
陶瓷工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Fanbing Lai,Wei Shi,Shuyun Hu,Xiaohong Li,Qibing Chang,Yongqing Wang,Qikun Wang
In this work, SrMn 1- x Fe x O 3- δ ( x = 0–1) black ceramic pigments were synthesized by the solid-state method. The research explores the influence of calcination temperature and iron ion doping on the color properties of the pigments. Furthermore, the potential applications of SrMn 1- x Fe x O 3- δ pigments in ceramic glaze and heat-absorbing materials are also discussed. The findings reveal that the synthesized SrMnO 3 pigment exhibits the lowest L* -value (22.30) at 1100 °C, although it displays a slight blue hue. To optimize the color properties of the SrMnO 3 pigment, iron ion doping is employed. When the doping level of iron ions is 50 mol.% (i.e., x = 0.5), the L* -value of the SrMn 0.5 Fe 0.5 O 3- δ pigment calcined at 1000 °C significantly decreases to 19.77, while the a* - and b* -values approach 0, resulting in a pure black color. This is attributed to the high surface roughness , low band gap energy, and substantial oxygen vacancies present in the SrMn 0.5 Fe 0.5 O 3- δ pigment. The tinting mechanism of the SrMn 1- x Fe x O 3- δ pigment in the ceramic glaze is classified as "ion tinting", wherein the glaze color relies on the concentrations of Mn and Fe ions. When the pigment content reaches 36 wt%, the L* -value of the glaze drops to 4.94, showing a deep black shade. Additionally, the SrMn 0.5 Fe 0.5 O 3- δ pigment exhibits excellent sunlight absorption capabilities, with a near-infrared reflectance ( R *) of only 5.04%. This research presents a black ceramic pigment with various advantages, such as simplified processing, affordability, environmental friendliness, and exceptional color performance.
研究领域:
材料科学
·
陶瓷工程
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2019
·
IF 3.45
Huidong Tang,Qing Hu,Feng Jiang,Weihui Jiang,Jianmin Liu,Ting Chen,Guo Feng,Tao Wang,Wei Luo
The zircon-based encapsulation carbon black (C@ZrSiO 4 ) inorganic pigments with controllable size were successfully prepared by non-aqueous sol-gel method with the assistance of soft mechano-chemistry (SMC) activation precursors. The XRD and FT-IR results showed that the SMC activation enhanced the reactivity of precursors and facilitated the formation of ZrSiO 4 phase with the calcination temperature at 900–1050 °C, indicating the successfully synthesis of pure ZrSiO 4 phase. The average size of C@ZrSiO 4 inorganic pigments significantly declined from 45.20 to 4.50 μm with the increase of SMC activation time of precursors, however, the L* values of pigments increased from 24.11 to 46.35. It was mainly because of the decreased amounts of protected carbon in ZrSiO 4 matrix and the enhanced light reflectance, which lead to the slight color change from deep black to gray black tone. The colored glaze samples presented a black hue after applied in the ceramic glaze at 1200 °C. Moreover, the black hue intensity of glazed samples was higher than that of the corresponding C@ZrSiO 4 inorganic pigments, indicating the prepared pigments have excellent tinctorial strength and hiding power. These results ensure that the obtained C@ZrSiO 4 inorganic pigments possess the outstanding chromatic performance, excellent high-temperature stability, high chemical stability and suitable particle size, and exhibit great potential in the application of the industrial ceramic decoration.
研究领域:
材料科学
·
无机化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）