Abstract:
L'invention concerne un procédé de dépôt d'un revêtement sur une fibre continue (150) en carbone ou en carbure de silicium à partir d'un précurseur du revêtement (140), le procédé comprenant au moins le chauffage d'un segment (151) de la fibre en présence du précurseur du revêtement dans un champ micro-ondes de façon à porter la surface du segment à une température permettant la formation du revêtement sur le segment à partir du précurseur du revêtement. L'invention vise aussi un dispositif pour la mise en œuvre d'un tel procédé.
Abstract:
The invention relates to a method for curing a form-supported refractory coating ofxan intermediate vessel. The method comprises mounting a form inside the intermediate vessel, dosing a refractory coating mass essentially in dry existence to the space between an inner surface of the intermediate vessel and an outer surface of the form and applying microwave energy to the refractory coating mass in order to stabilize the mass and bound it to the inner surface of the intermediate vessel.
Abstract:
A 3D printing system includes a build material and an ink for patterning portions of the build material. The printing system further includes two or more susceptors, a first susceptor and a second susceptor. The first susceptor causes heating when exposed to microwave radiation at a first temperature. The second susceptor causes heating when exposed to microwave radiation at a second temperature. The first susceptor material is decomposable or oxidizable at a third temperature that is higher than the second temperature. The second susceptor is transparent to microwave radiation at the first temperature.
Abstract:
A method for the manufacture of a carbon composite comprises compressing a combination comprising carbon and a binder at a temperature of about 350oC to about 1200°C and a pressure of about 500 psi to about 30,000 psi to form the carbon composite; wherein the binder comprises a nonmetal, metal, alloy of the metal, or a combination thereof; wherein the nonmetal is selected from the group consisting of SiO 2 , Si, B, B 2 O 3 , and a combination thereof; and the metal is selected from the group consisting of aluminum, copper, titanium, nickel, tungsten, chromium, iron, manganese, zirconium, hafnium, vanadium, niobium, molybdenum, tin, bismuth, antimony, lead, cadmium, selenium, and a combination thereof.
Abstract translation:制备碳复合材料的方法包括在约350℃至约1200℃的温度和约500psi至约30,000psi的压力下压缩包含碳和粘合剂的组合以形成碳复合材料; 其中所述粘合剂包括所述金属的非金属,金属,合金或其组合; 其中所述非金属选自SiO 2,Si,B,B 2 O 3及其组合; 所述金属选自铝,铜,钛,镍,钨,铬,铁,锰,锆,铪,钒,铌,钼,锡,铋,锑,铅,镉,硒等。 的组合。
Abstract:
A high zirconia electrically fused cast refractory having long time durability with less cracking during production and in the course of temperature rising, excellent in productivity, less forming zircon crystals in the refractory itself and even in contact with molten glass, excellent in bubble foamability to molten glass, less generating cracks even undergoing heat cycles during operation of a glass melting furnace. A high zirconia electrically fused cast refractory comprises, as chemical component, 85 to 95% by weight of ZrO 2 , 0.4 to 2.5% by weight of Al 2 O 3 , 3.5 to 10.0% by weight of SiO 2 , 0.05% by weight or more of Na 2 O, 0.05 to 0.7% by weight of Na 2 O and K 2 O in total, 0.01 to 0.04% by weight of B 2 O 3 , 0.1 to 3.0% by weight of SrO or BaO when one of BaO and SrO is contained, 0.1% by weight or more of SrO and 0.1 to 3.0% by weight of SrO and BaO in total when both of BaO and SrO are contained, 0.01 to 0.2% by weight of CaO, 0.1% by weight or less of MgO, 0.01 to 0.7% by weight of SnO 2 , 0.3% by weight or less of Fe 2 O 3 and TiO 2 in total, less than 0.01% by weight of P 2 O 5 , and less than 0.01% by weight of CuO.
Abstract translation:高耐氧化锆电熔铸造耐火材料,具有长时间的耐久性,在生产过程中和在升温过程中具有较少的开裂,生产率优异,耐火材料本身形成锆石晶体,甚至与熔融玻璃接触,熔融玻璃泡沫起泡性优异 玻璃,玻璃熔融炉操作期间即使经历热循环也不会产生裂纹。 高氧化锆电熔铸造耐火材料包含85〜95重量%的ZrO 2,0.4〜2.5重量%的Al 2 O 3,3.5〜10.0重量%的SiO 2,0.05重量%以上的Na 2 O,0.05 〜0.7重量%的Na 2 O和K 2 O,0.01〜0.04重量%的B 2 O 3,0.1〜3.0重量%的SrO或BaO,当含有BaO和SrO时,SrO为0.1重量%以上,0.1重量% 在含有BaO和SrO的情况下总共为3.0重量%的SrO和BaO,0.01〜0.2重量%的CaO,0.1重量%以下的MgO,0.01〜0.7重量%的SnO 2,0.3重量% 重量或更少的Fe 2 O 3和TiO 2,小于0.01重量%的P 2 O 5和小于0.01重量%的CuO。
Abstract:
A method of manufacturing a sulfide-based ceramic element, such as a transparent infrared optical element, comprising the steps of: - synthesizing a sulfide powder; and - sintering said powder to form said ceramic element; characterized in that said step of synthesizing said sulfide powder is performed by combustion in an aqueous solution, said solution comprising water as its only solvent, or containing water as its main solvent and at most 10%, and preferably at most 1% of the overall solvent mass, of one or more combustible solvents. The sulfide powder may be chosen, in particular, among ZnS, BaLa 2 S 4 , CaLa 2 S.
Abstract:
Disclosed is a method for fabricating a ceramic material from a preceramic polymer material. The method includes providing a preceramic polymer material that has a preceramic polymer and an electromagnetic radiation-responsive component. The electromagnetic radiation-responsive component is selected from boron-containing compounds, cobalt, titanium, zirconium, hafnium, tantalum, tungsten, rhenium,nitrides of aluminum, nitrides of titanium, nitrides of zirconium, nitrides of hafnium, nitrides of tantalum, nitrides of tungsten, nitrides of rhenium, carbides of aluminum, carbides of titanium, carbides of zirconium, carbides of hafnium, carbides of tantalum, carbides of tungsten, carbides of rhenium and combinations thereof. An electromagnetic radiation is applied to the preceramic polymer material. The electromagnetic radiation interacts with the electromagnetic radiation-responsive component to generate heat that converts the preceramic polymer to a ceramic material
Abstract:
The present invention provides a piezoelectric material not containing lead and potassium, showing satisfactory insulation and piezoelectricity, and having a high Curie temperature. The invention relates to a piezoelectric material includes a main component containing a perovskite-type metal oxide represented by Formula (1): (Na x Ba 1-y )(Nb y Ti 1-y )O 3 (wherein, 0.80 ≤ x ≤ 0.94 and 0.83 ≤ y ≤ 0.94), and an additive component containing at least one element selected from Mn and Ni, wherein the content of the Ni is 0 mol or more and 0.05 mol or less based on 1 mol of the perovskite-type metal oxide, and the content of the Mn is 0 mol or more and 0.005 mol or less based on 1 mol of the perovskite-type metal oxide.
Abstract translation:本发明提供一种不含铅和钾的压电材料,具有令人满意的绝缘和压电性,并具有很高的居里温度。 本发明涉及一种压电材料,其包含含有式(1)表示的钙钛矿型金属氧化物的主要成分:(NaxBa1-y)(NbyTi1-y)O3(其中,0.80 <= x <= 0.94和0.83 < y <0.94)和含有选自Mn和Ni中的至少一种元素的添加成分,其中Ni的含量相对于1摩尔钙钛矿型金属氧化物为0摩尔以上且0.05摩尔以下,以及 Mn的含量相对于1摩尔钙钛矿型金属氧化物为0摩尔以上且0.005摩尔以下。