Modification of YSZ fiber composites by Al2TiO5 fibers for high thermal shock resistance

Liu, Wei; Xie, Yongshuai; Deng, Zhezhe; Peng, Ying; Dong, Jing; Zhu, Ze; Mao, Dehua; Zhu, Luyi; Zhang, Guanghui; Wang, Xinqiang

doi:10.1007/s40145-022-0586-2

Cited by 32 publications

(14 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results further indicated that SiZrNOC-7 NFMs have excellent high-temperature thermal insulation performance. Moreover, we compared the λ at 1000 ℃ of SiZrNOC-7 NFMs with other ceramic fiber membranes, such as ZrO 2 [6,26], mullite [7,27], carbon [28,29], MgSiO 3 [30], and SiZrOC [13] (Fig. 6(d)).…”

Section: Thermal Insulation Performancementioning

confidence: 99%

“…Especially, the thermal insulating materials working under extreme conditions, such as long-term high-temperature (≥ 1000 ℃) exposure and rapid thermal shocking, are urgently required in the fields of aerospace, nuclear power engineering, and industry furnace [1,2]. In the past few decades, the ceramic fibers (such as SiO 2 , ZrO 2 , Al 2 O 3 , and mullite) are the most developed and widely investigated hightemperature thermal insulating materials due to their low density, low solid thermal conductivity, and excellent fire and high-temperature resistance [1][2][3][4][5][6]. They can be used as either flexible thermal insulators or reinforcements of aerogel thermal insulators, which are both urgently needed in high-temperature thermal insulation fields [7][8][9].…”

Section: Introduction mentioning

confidence: 99%

“…However, the ceramic fibers used at present are transparent in this range, which means that the radiation thermal conductivity of these fibers is high at high temperatures. As a result, the thermal conductivity of ceramic fiber thermal insulators significantly increased at high temperatures (> 0.2 W•m −1 •K −1 , above 1000 ℃), which cannot meet the demanding requirements of advanced equipment for high-efficiency and hightemperature thermal insulating materials [5][6][7].…”

Section: Introduction mentioning

confidence: 99%

See 2 more Smart Citations

Robust, fire-resistant, and thermal-stable SiZrNOC nanofiber membranes with amorphous microstructure for high-temperature thermal superinsulation

ZHANG¹,

Xu²,

Jiang³

et al. 2023

Journal of Advanced Ceramics

View full text Add to dashboard Cite

Ceramic nanofibers with robust mechanical properties, high-temperature resistance, and superior thermal insulation performance are promising thermal insulators used under extreme conditions. However, developing of ceramic fibers with both low solid thermal conductivity (λ s ) and low infrared radiation thermal conductivity (λ r ) is still a great challenge. Herein, according to the Ioffe-Regel limit theory, we report a novel SiZrNOC nanofiber membrane (NFM) with a typically amorphous structure by combining the electrospinning method and high-temperature pyrolysis technique in a NH 3 atmosphere. The prepared SiZrNOC NFM has a high tensile strength (1.98±0.09 MPa), excellent thermal stability (1100 ℃ in air), and superior thermal insulation performance. The thermal conductivity of SiZrNOC NFM was 0.112 W•m −1 •K −1 at 1000 ℃, which is obviously lower than that of the traditional ceramic fiber membranes (> 0.2 W•m −1 •K −1 at 1000 ℃). In addition, the prepared SiZrNOC NFM-reinforced SiO 2 aerogel composites (SiZrNOC f /SiO 2 ACs) exhibited ultralow thermal conductivity of 0.044 W•m −1 •K −1 at 1000 ℃, which was the lowest value for SiO 2 -based aerogel composites ever reported. Such superior thermal insulation performance of SiZrNOC NFMs was mainly due to significant decreasing of solid heat conduction and thermal radiation by the fancy amorphous microstructure and high infrared shielding compositions. This work not only provides a promising high-temperature thermal insulator, but also offers a novel route to develop other high-performance thermal insulating materials.

show abstract

Section: Thermal Insulation Performancementioning

confidence: 99%

Section: Introduction mentioning

confidence: 99%

Section: Introduction mentioning

confidence: 99%

See 1 more Smart Citation

Robust, fire-resistant, and thermal-stable SiZrNOC nanofiber membranes with amorphous microstructure for high-temperature thermal superinsulation

ZHANG¹,

Xu²,

Jiang³

et al. 2023

Journal of Advanced Ceramics

View full text Add to dashboard Cite

show abstract

“…As a result of the unique three-dimensional fiber-connection networks, porous fibrous ceramics have a series of outstanding physical and chemical properties, such as high porosity, low thermal conductivity, and excellent high temperature-resistance properties. − Recently, porous fibrous ceramics have been widely applied in various fields, such as energy conservation, recycling industry, and high-temperature thermal insulation. − With the rapid development of technology and industry, higher requirements are put forward for porous fibrous ceramics with comprehensive performances, including low density, low thermal conductivity, and high mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Cuttlefish-Bone-Structure-like Lamellar Porous Fiber-Based Ceramics with Enhanced Mechanical Performances

Zhang

Guo

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Porous fiber-based ceramics have been widely applied in various fields because of their excellent thermal insulation property and high thermal stability property. However, designing porous fibrous ceramics with enhanced comprehensive performances, such as low density, low thermal conductivity, and high mechanical properties at both room temperature and high temperature, is still a challenge and the future development trend. Hence, based on the lightweight cuttlefish bone that possesses a “wall-septa” structure with excellent mechanical performance, we design and fabricate a novel porous fibrous ceramic with the unique fiber-based dual structure of lamellas by the directional freeze-casting method and systematically investigate the effects of lamellar components on the microstructure and mechanical performances of the product. For the desired cuttlefish-bone-structure-like lamellar porous fiber-based ceramics (CLPFCs), the porous framework formed by the overlapping of transversely arranged fibers helps to reduce the density and thermal conductivity of the product, and the longitudinally arranged lamellar structure replaces traditional binders and plays an important role in improving the mechanical properties in the direction parallel to the X–Z plane. Compared with traditional porous fibrous materials reported in the literature, the CLPFCs with an Al2O3/SiO2 molar ratio of 1:2 in the lamellar component exhibits prominent comprehensive performances, such as low density, excellent thermal insulation property, and outstanding mechanical performances at both room temperature and high temperature (3.46 MPa at 1300 °C), indicating that the CLPFCs are a promising candidate for applications in high-temperature thermal insulation systems.

show abstract

“…However, due to the presence of organic ligands in the precursors, their decomposition during heat treatment tends to destroy the structure of the fibers, which is the main reason for the difficulty in obtaining high-performance continuous fibers. Although researchers have prepared a series of high-temperature-resistant oxide submicron fibers and continuous fibers such as Al 2 O 3 [22], ZrO 2 [23][24][25][26], HfO 2 [27], TiO 2 [28], Y 2 O 3 [29], SiO 2 [30,31], mullite [32,33], Al 2 TiO 5 [34], and Y 3 Al 5 O 12 [35] through the precursor method. Due to the large differences in the structure of ligands, metal element types, and fiber diameters, the heat treatment methods of various fibers are also very different.…”

Section: Introduction mentioning

confidence: 99%

Development of lutetium oxide continuous fibers with excellent mechanical properties

Xie¹,

Peng²,

WANG³

et al. 2023

Journal of Advanced Ceramics

Self Cite

View full text Add to dashboard Cite

The difficulty of reducing the diameter of lutetium oxide (Lu 2 O 3 ) continuous fibers below 50 μm not only limits the flexibility of the sample but also seriously affects their application and development in high-energy lasers. In this work, a Lu-containing precursor with high ceramic yield was used as raw material, fiberized into precursor fibers by dry spinning. The pressure-assisted water vapor pretreatment (PAWVT) method was creatively proposed, and the effect of pretreatment temperature on the ceramization behavior of the precursor fibers was studied. By regulating the decomposition behavior of organic components in the precursor, the problem of fiber pulverization during heat treatment was effectively solved, and the Lu 2 O 3 continuous fibers with a diameter of 40 μm were obtained. Compared with the current reported results, the diameter was reduced by about 50%, successfully breaking through the diameter limitation of Lu 2 O 3 continuous fibers. In addition, the tensile strength, elastic modulus, flexibility, and temperature resistance of Lu 2 O 3 continuous fibers were researched for the first time. The tensile strength and elastic modulus of Lu 2 O 3 continuous fibers were 373.23 MPa and 31.55 GPa, respectively. The as-obtained flexible Lu 2 O 3 continuous fibers with a limit radius of curvature of 3.5-4.5 mm had a temperature resistance of not lower than 1300 ℃, which established a solid foundation for the expansion of their application form in the field of high-energy lasers.

show abstract

Modification of YSZ fiber composites by Al2TiO5 fibers for high thermal shock resistance

Cited by 32 publications

References 53 publications

Robust, fire-resistant, and thermal-stable SiZrNOC nanofiber membranes with amorphous microstructure for high-temperature thermal superinsulation

Robust, fire-resistant, and thermal-stable SiZrNOC nanofiber membranes with amorphous microstructure for high-temperature thermal superinsulation

Cuttlefish-Bone-Structure-like Lamellar Porous Fiber-Based Ceramics with Enhanced Mechanical Performances

Development of lutetium oxide continuous fibers with excellent mechanical properties

Contact Info

Product

Resources

About