硅酸盐学报

铁系黑釉的呈色机理及其光热转换性能

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王晓梅 ¹ , 李海永 ¹ , 黄旭春 ¹ , 展红全 ¹ , 汪长安 ² , 罗志云 ¹

硅酸盐学报 | 研究论文 2025,53(12): 3702-3710

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硅酸盐学报 |研究论文 2025 , 53 (12) : 3702 -3710

铁系黑釉的呈色机理及其光热转换性能

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王晓梅¹, 李海永¹, 黄旭春¹, 展红全¹, 汪长安², 罗志云¹

作者信息

^1．景德镇陶瓷大学材料科学与工程学院，江西景德镇 333403

^2．清华大学材料学院，北京 100084

通讯作者:

展红全（1974—），男，博士，教授。

作者简介:

王晓梅（1999—），女，硕士研究生。

Coloring Mechanism and Photothermal Conversion Performance of Iron-Based Black Glaze

Xiaomei WANG¹, Haiyong LI¹, Xuchun HUANG¹, Hongquan ZHAN¹, Changan WANG², Zhiyun LUO¹

Affiliations

^1.Department of Material Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, Jiangxi, China

^2.School of Material Science and Engineering, Tsinghua University, Beijing 100084, China

Corresponding Author:

ZHAN Hongquan (1974-), male, Ph. D., Professor. E-mail: zhq_0425@163.com

WANG Xiaomei (1999-), female, Master candidate. E-mail: 3489224946@qq.com

出版时间: 2025-12-20 doi: 10.14062/j.issn.0454-5648.20250038

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摘要

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本工作研究了SiO₂-Al₂O₃-CaO-MgO-Na₂O-ZnO-Fe₂O₃多元釉系统中，氧化铁变量对釉层显微结构和釉面呈色的影响。通过漫反射光谱、XRD、拉曼光谱、SEM、TEM等测试手段对样品呈色机理进行了分析，利用双用热电偶测温仪获取样品表面温度值并采用红外成像仪获取热图。结果表明，当氧化铁含量较少时，三价铁离子会以［FeO₄］四面体的形式参与釉层网络结构，釉面以Fe离子的化学发色为主，呈现棕黄色；而当氧化铁的含量增加到6.5%时，大量约3 nm的富铁团聚体甚至晶核从釉层析出，且釉层从上至下呈现折射率梯度增加的结构特点，这种釉层的特殊微纳结构将大大增加对太阳光的吸收和消耗，釉面呈现出墨黑色效果和结构发色的特征。光热性能测试显示该釉面与素坯有12.2 ℃的最高温差，表明其具有良好的光热转换特性，显示了在太阳能绿色利用的巨大潜力。

关键词

黑釉 / 氧化铁 / 结构色 / 光热性能 / 微纳结构

Abstract

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Introduction

Solar energy as a sustainable energy source has attracted much attention, and the development of highly efficient photothermal conversion materials becomes a key to coping with the energy crisis due to an increase in global energy consumption and demand. Conventional photothermal materials generally have some bottlenecks such as complication preparation process, high cost, and lack of durability, and there is an urgent need to develop novel and efficient materials. As a crystallization of Chinese ceramic craftsmanship inherited for thousands of years, black porcelain glaze with its rabbit hair, oil drop and other classic glazes show a unique artistic value due to the low cost of raw materials, mature and stable technology, especially for the solar spectra of the wide-area absorption characteristics in photothermal conversion to show a significant advantage. However, there is still controversy in the academic community regarding the coloring mechanism of black glaze, and there is a lack of systematic research on its photothermal properties. In this work, we investigated a relationship between the iron oxide content and the glaze layer by using a basic glaze of SiO₂-Al₂O₃-CaO-MgO-Na₂O-ZnO-Fe₂O₃ in the microstructure and glaze color, revealing the mechanism of its black color formation and photothermal conversion properties.

Methods

The raw materials were mixed in a ratio of 1.0∶1.3 and ground in a ball mill, and the ground slurry was sieved through a 200-mesh sieve. Afterwards, the glaze paste was dipped and coated on a 40 mm diameter billet for several times, keeping its thickness of approximately 1 mm. The samples were dried in an oven at 75 ℃ for 12 h, and then fired in an electric furnace in air according to the following firing procedure, i.e., the temperature increased to 400 ℃ at a rate of 2.5 ℃/min and kept warm for 30 min, then increased to 1250 ℃ at a rate of 4 ℃/min and kept warm for 90 min, and then decreased to 1100 ℃ at a rate of 2.5 ℃/min and kept warm for 30 min. Finally, the glaze sample was naturally cooled to room temperature in the furnace.

The parameters such as L*, a* and b* values in the CIE space of the samples were determined by a model WSD-3C whiteness meter. The light reflection spectra of the glaze were analyzed by a model Lambda 850 UV/Vis diffuse reflection spectrometer. The Raman spectra was characterized by a model InVia type Raman spectroscope (Renishaw Co., UK) with an excitation wavelength of 532 nm. The physical phase of the glaze was detected by a model D8-Advance X-ray diffractometer (XRD, Bruker Co., Germany), with a 2θ of 10°-80°. The glaze samples were firstly etched with 10% hydrofluoric acid solution for 30 min, and then the microstructure was determined by a model SU8010 scanning electron microscope (SEM, Hitachi Co., Japan). The elemental composition was determined by a model 550I energy dispersive X-ray spectroscope (EDS) . The morphology and structure were analyzed by a model JEM2100F transmission electron microscopy (TEM, JEOL Co., Japan) at a voltage of 200 kV, and the surface temperature of the glaze samples was tested by a model UT320D high-precision K/J dual-purpose thermocouple thermometer (UNI-T Co., China). The thermograms of the samples were obtained by a Ti400+ thermal infrared image analyser (FLUKE Co., USA).

Results and discussion

The experiment results show that the color of the glaze changes with the increase of iron oxide content. The glaze is transparent when the iron oxide content is 0.0%. The glaze surface turns brownish yellow when the iron oxide content increases to 2.5%. The glaze surface appears dark black when the content further increases 6.5%. A micro-/nano- array structure of resembling zinc ferrite crystals forms when the excess of iron oxide reaches 9.5%, which affects the color of the glaze surface. Clearly, the iron oxide goes through the process of participating in the network structure of the glaze layer and precipitating from the glaze layer. The in-depth analysis of the ink-black colored glaze samples reveals that a large number of iron-rich agglomerates or even crystal nuclei of approximately 3 nm are precipitated from the glaze layer, and the glaze samples are characterized by an increase in the refractive index gradient from the glaze surface to the billet. This special micronaire structure can strengthen the glaze layer's absorption of the incident light, resulting in the glaze with a black color effect and also greatly improving the performance of its photothermal conversion.

Conclusions

This study investigated the effect of iron oxide variation on the microstructure and color of the glaze layer in the SiO₂-Al₂O₃-CaO-MgO-Na₂O-ZnO-Fe₂O₃ multicomponent glaze system. The results indicated that when the content of iron oxide was low, the trivalent iron ions could participate in the network structure of the glaze layer in the form of [FeO4] tetrahedra, and the glaze surface dominated due to the chemical coloring of Fe ions, presenting a brownish-yellow color. A large number of iron-rich aggregates and even crystal nuclei of approximately 3 nm could precipitate from the glaze layer when the content of iron oxide increased to 6.5%, and the glaze layer exhibited a structural characteristic of increasing refractive index gradient from top to bottom. The special micro-/nano-structure of this glaze layer could greatly increase the absorption and consumption of sunlight, and the glaze surface had a black effect and structural coloring characteristics. The results of photothermal performance test showed that the glaze could have the maximum temperature difference of 12.2 ℃ with the blank color, indicating its good photothermal conversion characteristics and a great potential in the green utilization of solar energy.

Key words

black glaze / ferric oxide / structural color / photothermal performance / micro-nano-structure

引用本文

王晓梅, 李海永, 黄旭春, 展红全, 汪长安, 罗志云. 铁系黑釉的呈色机理及其光热转换性能. 硅酸盐学报, 2025 , 53 (12) : 3702 -3710 . DOI: 10.14062/j.issn.0454-5648.20250038

Xiaomei WANG, Haiyong LI, Xuchun HUANG, Hongquan ZHAN, Changan WANG, Zhiyun LUO. Coloring Mechanism and Photothermal Conversion Performance of Iron-Based Black Glaze[J]. Journal of the Chinese Ceramic Society, 2025 , 53 (12) : 3702 -3710 . DOI: 10.14062/j.issn.0454-5648.20250038

基金

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国家自然科学基金(52062020)

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2025年第53卷第12期

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文章信息

doi: 10.14062/j.issn.0454-5648.20250038

接收时间：2025-01-15
首发时间：2026-10-21
出版时间：2025-12-20

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出版历史

收稿日期：2025-01-15
修回日期：2025-03-07

基金

国家自然科学基金(52062020)

作者信息

^1．景德镇陶瓷大学材料科学与工程学院，江西景德镇 333403

^2．清华大学材料学院，北京 100084

通讯作者:

展红全（1974—），男，博士，教授。

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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