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Gradient impedance high-temperature ceramic wave-absorbing material based on 3D printing technology and preparation method of gradient impedance high-temperature ceramic wave-absorbing material
The invention discloses a gradient impedance high-temperature ceramic wave-absorbing material based on a 3D printing technology and a preparation method of the gradient impedance high-temperature ceramic wave-absorbing material, and belongs to the technical field of wave-absorbing materials.The preparation method comprises the steps that a selective laser sintering technology is adopted for printing composite powder into a ceramic green body with a gradient hole structure, and the ceramic green body is degreased; placing the degreased ceramic green body in a ceramic precursor solution, carrying out vacuum pressure infiltration, further carrying out cross-linking solidification, and carrying out pyrolysis to obtain a precursor conversion ceramic material; repeating the infiltration-crosslinking curing-pyrolysis process for 1-8 times on the precursor converted ceramic material to obtain a ceramic-based wave-absorbing material preform; and putting the ceramic-based wave-absorbing material preform into the low-dielectric nano material precursor sol, carrying out vacuum pressure infiltration, and carrying out further heat treatment to convert the infiltrated sol into an inorganic nano material so as to prepare the gradient impedance high-temperature ceramic wave-absorbing material with good wave-absorbing performance and high temperature resistance based on the 3D printing technology.
本发明公开了一种基于3D打印技术的梯度阻抗高温陶瓷吸波材料及其制备方法，属于吸波材料技术领域，本发明采用选择性激光烧结技术将复合粉体打印成型具有梯度孔结构的陶瓷坯体，将陶瓷坯体脱脂；再将脱脂后的陶瓷坯体置于陶瓷前驱体溶液中，通过真空压力浸渗后，进一步交联固化、热解后得到前驱体转化陶瓷材料；将前驱体转化陶瓷材料重复上述浸渗‑交联固化‑热解工艺1～8次，得到陶瓷基吸波材料预制体；将陶瓷基吸波材料预制体置于低介电纳米材料前驱体溶胶中，通过真空压力浸渗后，进一步热处理使浸渗后的溶胶转化成无机纳米材料，制备得到所述的具有良好的吸波性能和耐高温性能的基于3D打印技术的梯度阻抗高温陶瓷吸波材料。
Gradient impedance high-temperature ceramic wave-absorbing material based on 3D printing technology and preparation method of gradient impedance high-temperature ceramic wave-absorbing material
The invention discloses a gradient impedance high-temperature ceramic wave-absorbing material based on a 3D printing technology and a preparation method of the gradient impedance high-temperature ceramic wave-absorbing material, and belongs to the technical field of wave-absorbing materials.The preparation method comprises the steps that a selective laser sintering technology is adopted for printing composite powder into a ceramic green body with a gradient hole structure, and the ceramic green body is degreased; placing the degreased ceramic green body in a ceramic precursor solution, carrying out vacuum pressure infiltration, further carrying out cross-linking solidification, and carrying out pyrolysis to obtain a precursor conversion ceramic material; repeating the infiltration-crosslinking curing-pyrolysis process for 1-8 times on the precursor converted ceramic material to obtain a ceramic-based wave-absorbing material preform; and putting the ceramic-based wave-absorbing material preform into the low-dielectric nano material precursor sol, carrying out vacuum pressure infiltration, and carrying out further heat treatment to convert the infiltrated sol into an inorganic nano material so as to prepare the gradient impedance high-temperature ceramic wave-absorbing material with good wave-absorbing performance and high temperature resistance based on the 3D printing technology.
本发明公开了一种基于3D打印技术的梯度阻抗高温陶瓷吸波材料及其制备方法，属于吸波材料技术领域，本发明采用选择性激光烧结技术将复合粉体打印成型具有梯度孔结构的陶瓷坯体，将陶瓷坯体脱脂；再将脱脂后的陶瓷坯体置于陶瓷前驱体溶液中，通过真空压力浸渗后，进一步交联固化、热解后得到前驱体转化陶瓷材料；将前驱体转化陶瓷材料重复上述浸渗‑交联固化‑热解工艺1～8次，得到陶瓷基吸波材料预制体；将陶瓷基吸波材料预制体置于低介电纳米材料前驱体溶胶中，通过真空压力浸渗后，进一步热处理使浸渗后的溶胶转化成无机纳米材料，制备得到所述的具有良好的吸波性能和耐高温性能的基于3D打印技术的梯度阻抗高温陶瓷吸波材料。
Gradient impedance high-temperature ceramic wave-absorbing material based on 3D printing technology and preparation method of gradient impedance high-temperature ceramic wave-absorbing material
一种基于3D打印技术的梯度阻抗高温陶瓷吸波材料及其制备方法
YU SIWEN (author) / SUN AIHUA (author) / CHU CHENGYI (author) / QIU ZHUOHAO (author) / GUO JIAN (author) / BAO XIXI (author) / CHEN HAO (author) / YING SONGTAO (author) / DONG JIAJING (author) / CHENG YUCHUAN (author)
2024-01-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
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