CN114560718A - 一种具有球形孔结构多孔介电陶瓷的快速成型制备方法 - Google Patents
一种具有球形孔结构多孔介电陶瓷的快速成型制备方法 Download PDFInfo
- Publication number
- CN114560718A CN114560718A CN202210245566.5A CN202210245566A CN114560718A CN 114560718 A CN114560718 A CN 114560718A CN 202210245566 A CN202210245566 A CN 202210245566A CN 114560718 A CN114560718 A CN 114560718A
- Authority
- CN
- China
- Prior art keywords
- ceramic
- pore structure
- porous
- spherical pore
- emulsifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 161
- 239000011148 porous material Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000000725 suspension Substances 0.000 claims abstract description 39
- 239000004568 cement Substances 0.000 claims abstract description 31
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 30
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 238000005245 sintering Methods 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000007764 o/w emulsion Substances 0.000 claims abstract description 15
- 229910052574 oxide ceramic Inorganic materials 0.000 claims abstract description 15
- 239000011224 oxide ceramic Substances 0.000 claims abstract description 15
- 239000000839 emulsion Substances 0.000 claims abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 12
- 229910002113 barium titanate Inorganic materials 0.000 claims description 27
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 27
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 27
- 239000012188 paraffin wax Substances 0.000 claims description 20
- 125000005456 glyceride group Chemical group 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 125000000129 anionic group Chemical group 0.000 claims description 8
- 229910052797 bismuth Inorganic materials 0.000 claims description 8
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 8
- FSAJRXGMUISOIW-UHFFFAOYSA-N bismuth sodium Chemical compound [Na].[Bi] FSAJRXGMUISOIW-UHFFFAOYSA-N 0.000 claims description 8
- HAUBPZADNMBYMB-UHFFFAOYSA-N calcium copper Chemical compound [Ca].[Cu] HAUBPZADNMBYMB-UHFFFAOYSA-N 0.000 claims description 8
- 125000002091 cationic group Chemical group 0.000 claims description 8
- 229910052451 lead zirconate titanate Inorganic materials 0.000 claims description 8
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 claims description 8
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 claims description 8
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 8
- 229910000859 α-Fe Inorganic materials 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 229940005740 hexametaphosphate Drugs 0.000 claims description 7
- 150000004645 aluminates Chemical class 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920000136 polysorbate Polymers 0.000 claims description 6
- 229910002115 bismuth titanate Inorganic materials 0.000 claims description 5
- 150000002191 fatty alcohols Chemical class 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 20
- 239000003921 oil Substances 0.000 abstract description 11
- 239000003795 chemical substances by application Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000005303 weighing Methods 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 7
- 238000001757 thermogravimetry curve Methods 0.000 description 5
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000004108 freeze drying Methods 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003985 ceramic capacitor Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000000614 phase inversion technique Methods 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000008030 superplasticizer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
- C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/475—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on bismuth titanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
- C04B35/49—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates containing also titanium oxides or titanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/495—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/6303—Inorganic additives
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63496—Bituminous materials, e.g. tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/067—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
本发明涉及一种多孔介电陶瓷的制备方法，包括如下步骤：（1）制备多孔陶瓷所需水包油型乳状液：以水为溶剂，分别加入减水剂、乳化剂以及油相，充分搅拌均匀备用；（2）制备陶瓷悬浮液及胚体：将具有一定配比的高介电常数氧化物陶瓷粉体与水泥加入到上述乳状液中，经充分搅拌制得悬浮液，将其倒入相应模具，经固化后得到陶瓷胚体；（3）干燥及烧结：将陶瓷胚体在常温下静置养护，在80~120°C下干燥4~20小时后，在850~1380°C烧结2‑4小时制得具有球形孔结构多孔陶瓷。本发明通过采用高介电常数氧化物陶瓷粉体为原料，以水泥为固化剂，并辅以水、减水剂、乳化剂、油相，实现具有球型孔结构多孔介电陶瓷的快速成型制备。
Description
技术领域
本发明涉及一种多孔介电陶瓷的制备方法。
背景技术
多孔钛酸钡陶瓷是一种无铅铁电压电陶瓷材料，其具有较高的介电常数、压电系数，具有一定的机械强度和较小的介电损耗，可用于制备陶瓷电容器、微波陶瓷、热敏电阻器以及低温共烧陶瓷等。而通过其具有多孔结构的特点亦可使其用于过滤与分离材料、传感器件材料、声纳检测材料等领域。
目前常用以下五种方法制备多孔陶瓷：（1）相转化法；（2）牺牲模板法；（3）复制模板法；（4）直接发泡法；（5）3D打印法。在制备多孔铁电陶瓷时多采用高分子材料与有机溶剂为造孔剂和胚体固化剂，使得在煅烧过程中容易释放有害气体，污染环境；亦存在制备工艺较为复杂；孔径难以调节，孔分布不均匀；所制备的陶瓷介电压电性能无法连续调节等缺点。
中国专利公开号CN111559918A公开了一种微乳液结合冷冻干燥制备多孔陶瓷坯体的方法，包括：（1）将水、油相和表面活性剂混合，得到水包油乳液，（2）在所得水包油乳液中加入陶瓷粉体、烧结助剂、分散剂和粘结剂，混合后得到陶瓷浆料；（3）将所得陶瓷浆料经真空脱气后倒入模具中进行冷冻固化和冷冻干燥，得到所述多孔陶瓷坯体。该方法制备的陶瓷胚体是陶瓷浆料经冷冻固化和冷冻干燥后得到，因此所制得的孔是扭曲的树枝状孔洞，不但不够美观，而且强度低，另外，因为使用了含碳元素的粘结剂（如淀粉等），在烧结过程中会形成还原环境，在陶瓷中留下黑色残留物，使制得的多孔介电陶瓷成为半导体。
发明内容
本发明所要解决的技术问题使提供一种新型多孔介电陶瓷的快速成型制备方法，解决上述目前制备多孔陶瓷工艺过程中的缺点。
本发明解决上述技术问题的方案是：
一种具有球形孔结构多孔介电陶瓷的快速成型制备方法，包括如下步骤：
（1）制备多孔陶瓷所需水包油型乳状液：以水为溶剂，分别加入减水剂、乳化剂以及油相，充分搅拌均匀备用； （2）制备陶瓷悬浮液及胚体：将具有一定配比的高介电常数氧化物陶瓷粉体与水泥加入到上述乳状液中，经充分搅拌制得悬浮液，将其倒入相应模具，经固化后得到陶瓷胚体；
（3）干燥及烧结：将陶瓷胚体在常温下静置养护，在80~120°C下干燥4~20小时后，在850~1380 °C烧结2-4小时制得具有球形孔结构多孔陶瓷；
其中，步骤（1）所述水的加入量为陶瓷粉体重量的19~25%，减水剂用量为高介电常数氧化物陶瓷粉体和水泥总重量的0.05~0.2%，乳化剂与油相的体积比为10~30：1，油相与高介电常数氧化物陶瓷粉体的比例为1~2mL：2g；步骤（2）所述的高介电常数氧化物陶瓷粉体与水泥的重量比为8~25：1。
优选的，所述高介电常数氧化物陶瓷粉体的介电常数为3000-50000。
优选的，所述高介电常数氧化物陶瓷粉体包括钛酸钡、锆钛酸铅、钛酸铋钠、铁酸铋、铌酸钾钠、钛酸铜钙中的任意一种。
优选的，所述的减水剂为三聚六偏、氨基高效减水剂、聚羧酸高效减水剂、阴离子石蜡微乳化剂中的任意一种。
优选的，所述的乳化剂为吐温、非离子石蜡微乳化剂、阳离子石蜡微乳化剂中的任意一种。
优选的，所述的油相为正辛烷、甘油酯、脂肪醇中的任意一种。
优选的，所述的水泥为铝酸盐secar68、铝酸盐secar71、铝酸盐secar80中的任意一种。发明人发现，其它类型的水泥，例如硅酸盐水泥，在制备悬浮液时需要加入更多水，使得胚体强度较低，固化时间较长，因此硅酸盐水泥并不适用于该体系。
本发明具有如下有益效果：
本发明通过采用高介电常数氧化物陶瓷粉体为原料，以水泥为固化剂，并辅以水、减水剂、乳化剂、油相实现具有球型孔多孔陶瓷的快速成型制备。将上述物质混合搅拌均匀并倒入摸具后，得到相应悬浮液及胚体，再经过一定时间的干燥与烧结，制备出具有球形多孔结构的陶瓷。与现有多孔陶瓷制备相比，具有对环境污染小，可塑性高，孔径分布均一且易于调控，可实现介电压电性能连续可调的特点。
本发明由于以水泥为固化剂，可以做到常温下快速固化，不需要冷冻固化，保证了步骤1形成的水包油型乳状液在陶瓷胚体中不因冷冻而发生变形，保证了孔洞是完美的球形孔。
本发明选用的造孔剂（水、减水剂、乳化剂、油相）在室温养护、干燥和高温烧结过程中会全部挥发，无残留，不会影响陶瓷性能。
附图说明
图1为实施例1-4所得多孔介电陶瓷的介电温谱图。
图2为实施例1所得多孔介电陶瓷的铁电性能图。
图3为实施例1-4所得多孔介电陶瓷的XRD结果图。
图4为实施例1-4所得多孔介电陶瓷的SEM结果图。
具体实施方式
下面将结合具体实施例及附图对本发明作进一步详细描述。
实施例1
具有球形孔结构多孔钛酸钡陶瓷，制备方法为：
（1）制备多孔陶瓷所需水包油型乳状液：以水为溶剂，加入三聚六偏，吐温以及正辛烷，充分搅拌均匀备用。 其中，水用量为钛酸钡总重的19%，三聚六偏用量为钛酸钡和水泥总质量的0.15%，吐温与正辛烷的体积比为20：1，正辛烷与钛酸钡的比例为1.5mL：2g。
（2）制备陶瓷悬浮液及胚体：按照钛酸钡与secar-71水泥的比例为20：1称取原料，加入到上述乳状液中，充分搅拌制得悬浮液，将其倒入相应模具，经固化后得到陶瓷胚体。
（3）干燥及烧结：将上述陶瓷胚体在常温下静置养护，在100 °C下干燥20小时，经1380 °C保温3小时后烧结制得多孔钛酸钡铁电陶瓷。
实验测得：
陶瓷的耐压强度为2.8 MPa；陶瓷的气孔率为43%；陶瓷孔的尺寸为105 μm;陶瓷在30 °C下的介电常数为1420.24，介电损耗为0.034；陶瓷的介电温谱图如图1中实施例1曲线所示；陶瓷的铁电性能如图2所示；陶瓷XRD结果如图3中实施例1曲线所示；陶瓷SEM结果如图4中A)图所示。
实施例2：
具有球形孔结构多孔钛酸钡陶瓷，制备方法为：
（1）制备多孔陶瓷所需水包油型乳状液：以水为溶剂，加入聚羧酸高效减水剂，阳离子石蜡微乳化剂以及甘油酯，充分搅拌均匀备用。 其中，水用量为钛酸钡的25%，聚羧酸高效减水剂用量为钛酸钡和水泥总质量的0.05%，阳离子石蜡微乳化剂与甘油酯的体积比为30：1，甘油酯与钛酸钡的比例为1mL：2g。
（2）制备陶瓷悬浮液及胚体：按照钛酸钡与secar-68水泥的比例为8：1称取原料，加入到上述乳状液中，充分搅拌制得悬浮液，将其倒入相应模具，经固化后得到陶瓷胚体。
（3）干燥及烧结：将上述陶瓷胚体在常温下静置养护，在100 °C下干燥4小时，经1350 °C保温2小时烧结制得多孔钛酸钡铁电陶瓷。
实验测得：
陶瓷的耐压强度为3.6 MPa；陶瓷的气孔率为37%；陶瓷孔的尺寸为97 μm；陶瓷在30 °C下的介电常数为1264.23，介电损耗为0.028；陶瓷的介电温谱图如图1中实施例2曲线所示；陶瓷XRD结果如图3中实施例2曲线所示；陶瓷SEM结果如图4中B)图所示。
实施例3：
具有球形孔结构多孔钛酸钡陶瓷，制备方法为：
（1）制备多孔陶瓷所需水包油型乳状液：以水为溶剂，加入氨基高效减水剂，阴离子石蜡微乳化剂以及正辛烷，充分搅拌均匀备用。 其中，水用量为钛酸钡总重的22%，氨基高效减水剂用量为钛酸钡和水泥总质量的0.2%，阴离子石蜡微乳化剂与正辛烷的体积比为10：1，油相与钛酸钡的比例为2mL：2g。
（2）制备陶瓷悬浮液及胚体：按照钛酸钡与secar-80水泥的比例为15：1称取原料，加入到上述乳状液中，充分搅拌制得悬浮液，将其倒入相应模具，经固化后得到陶瓷胚体。
（3）干燥及烧结：将上述陶瓷胚体在常温下静置养护，在100 °C下干燥15小时，经1365 °C保温4小时烧结制得多孔钛酸钡铁电陶瓷。
实验测得：
陶瓷的耐压强度为0.82 MPa；陶瓷的气孔率为51%；陶瓷孔的尺寸为120 μm；陶瓷在30 °C下的介电常数为1087.49，介电损耗为0.1；陶瓷的介电温谱图如图1-中实施例3曲线所示；陶瓷XRD结果如图3中实施例3曲线所示；陶瓷SEM结果如图4中C)图所示。
实施例4：
具有球形孔结构多孔钛酸钡陶瓷，制备方法为：
（1）制备多孔陶瓷所需水包油型乳状液：以水为溶剂，加入三聚六偏，非离子石蜡微乳化剂以及脂肪醇，充分搅拌均匀备用。 其中，水用量为钛酸钡总重的20%，三聚六偏用量为钛酸钡和水泥总质量的0.1%，石蜡微乳化剂与脂肪醇的体积比为15：1，脂肪醇与钛酸钡的比例为1.3mL：2g。
（2）制备陶瓷悬浮液及胚体：按照钛酸钡与secar-71水泥的比例为25：1称取原料，加入到上述乳状液中，充分搅拌制得悬浮液，将其倒入相应模具，经固化后得到陶瓷胚体。
（3）干燥及烧结：将上述陶瓷胚体在常温下静置养护，在100 °C下干燥10小时，经1370 °C保温3小时烧结制得多孔钛酸钡铁电陶瓷。
实验测得：
陶瓷的耐压强度为1.35 MPa；陶瓷的气孔率为41%；陶瓷孔的尺寸为112 μm;陶瓷在30 °C下的介电常数为1524.94，介电损耗为0.036；陶瓷的介电温谱图如图1中实施例4曲线所示；陶瓷XRD结果如图3中实施例4曲线所示；陶瓷SEM结果如图4中D)图所示。
实施例5：
具有球形孔结构多孔锆钛酸铅陶瓷，制备方法为：
（1）制备多孔陶瓷所需水包油型乳状液：以水为溶剂，加入三聚六偏，吐温以及正辛烷，充分搅拌均匀备用。 其中，水用量为锆钛酸铅总重的19%，三聚六偏用量为锆钛酸铅和水泥总质量的0.15%，吐温与正辛烷的体积比为20：1，正辛烷与锆钛酸铅的比例为1.5mL：2g。
（2）制备陶瓷悬浮液及胚体：按照锆钛酸铅与secar-71水泥的比例为20：1称取原料，加入到上述乳状液中，充分搅拌制得悬浮液，将其倒入相应模具，经固化后得到陶瓷胚体。
（4）干燥及烧结：将上述陶瓷胚体在常温下静置养护，在100 °C下干燥20小时，经1360 °C保温3小时后烧结制得多孔锆钛酸铅铁电陶瓷。
实验测得：
陶瓷的耐压强度为1.9 MPa；陶瓷的气孔率为42%；陶瓷孔的尺寸为98 μm;陶瓷在30 °C下的介电常数为1514.25，介电损耗为0.008。SEM图中可以看到孔洞为球形孔。
实施例6：
具有球形孔结构多孔钛酸铋钠陶瓷，制备方法为：
（1）制备多孔陶瓷所需水包油型乳状液：以水为溶剂，加入聚羧酸高效减水剂，阳离子石蜡微乳化剂以及甘油酯，充分搅拌均匀备用。 其中，水用量为钛酸铋钠的25%，聚羧酸高效减水剂用量为钛酸铋钠和水泥总质量的0.05%，阳离子石蜡微乳化剂与甘油酯的体积比为30：1，甘油酯与钛酸铋钠的比例为1mL：2g。
（2）制备陶瓷悬浮液及胚体：按照钛酸铋钠与secar-68水泥的比例为8：1称取原料，加入到上述乳状液中，充分搅拌制得悬浮液，将其倒入相应模具，经固化后得到陶瓷胚体。
（4）干燥及烧结：将上述陶瓷胚体在常温下静置养护，在100 °C下干燥4小时，经1100 °C保温2小时烧结制得多孔钛酸铋钠铁电陶瓷。
实验测得：
陶瓷的耐压强度为3.4 MPa；陶瓷的气孔率为36%；陶瓷孔的尺寸为89 μm；陶瓷在30 °C下的介电常数为1269.46，介电损耗为0.019。SEM图中可以看到孔洞为球形孔。
实施例7
具有球形孔结构多孔铁酸铋陶瓷，制备方法为：
（1）制备多孔陶瓷所需水包油型乳状液：以水为溶剂，加入氨基高效减水剂，阴离子石蜡微乳化剂以及正辛烷，充分搅拌均匀备用。 其中，水用量为铁酸铋总重的22%，氨基高效减水剂用量为铁酸铋和水泥总质量的0.2%，阴离子石蜡微乳化剂与正辛烷的体积比为10：1，油相与铁酸铋的比例为2mL：2g。
（2）制备陶瓷悬浮液及胚体：按照铁酸铋与secar-80水泥的比例为15：1称取原料，加入到上述乳状液中，充分搅拌制得悬浮液，将其倒入相应模具，经固化后得到陶瓷胚体。
（4）干燥及烧结：将上述陶瓷胚体在常温下静置养护，在100 °C下干燥15小时，经850 °C保温4小时烧结制得多孔铁酸铋铁电陶瓷。
实验测得：
陶瓷的耐压强度为0.9 MPa；陶瓷的气孔率为52%；陶瓷孔的尺寸为132 μm；陶瓷在30 °C下的介电常数为445.87，介电损耗为0.14。SEM图中可以看到孔洞为球形孔。
实施例8：
具有球形孔结构多孔铌酸钾钠陶瓷，制备方法为：
（1）制备多孔陶瓷所需水包油型乳状液：以水为溶剂，加入聚羧酸高效减水剂，阳离子石蜡微乳化剂以及甘油酯，充分搅拌均匀备用。 其中，水用量为铌酸钾钠的25%，聚羧酸高效减水剂用量为铌酸钾钠和水泥总质量的0.10%，阳离子石蜡微乳化剂与甘油酯的体积比为25：1，甘油酯与铌酸钾钠的比例为1.4mL：2g。
（2）制备陶瓷悬浮液及胚体：按照铌酸钾钠与secar-68水泥的比例为14：1称取原料，加入到上述乳状液中，充分搅拌制得悬浮液，将其倒入相应模具，经固化后得到陶瓷胚体。
（5）干燥及烧结：将上述陶瓷胚体在常温下静置养护，在100 °C下干燥12小时，经1100 °C保温3小时烧结制得多孔铌酸钾钠铁电陶瓷。
实验测得：
陶瓷的耐压强度为2.4 MPa；陶瓷的气孔率为40%；陶瓷孔的尺寸为90 μm；陶瓷在30 °C下的介电常数为 957.68，介电损耗为0.079 ； SEM图中可以看到孔洞为球形孔。
实施例9：
具有球形孔结构多孔钛酸铜钙陶瓷，制备方法为：
（1）制备多孔陶瓷所需水包油型乳状液：以水为溶剂，加入氨基高效减水剂，阴离子石蜡微乳化剂以及正辛烷，充分搅拌均匀备用。 其中，水用量为钛酸铜钙总重的22%，氨基高效减水剂用量为钛酸铜钙和水泥总质量的0.12%，阴离子石蜡微乳化剂与正辛烷的体积比为18：1，油相与钛酸铜钙的比例为1.8mL：2g。
（2）制备陶瓷悬浮液及胚体：按照钛酸铜钙与secar-80水泥的比例为12：1称取原料，加入到上述乳状液中，充分搅拌制得悬浮液，将其倒入相应模具，经固化后得到陶瓷胚体。
（5）干燥及烧结：将上述陶瓷胚体在常温下静置养护，在100 °C下干燥18小时，经1060 °C保温4小时烧结制得多孔钛酸铜钙铁电陶瓷。
实验测得：
陶瓷的耐压强度为2.6 MPa；陶瓷的气孔率为40 %；陶瓷孔的尺寸为136 μm；陶瓷在30 °C下的介电常数为3486.52 ，介电损耗为0.06 ；SEM图中可以看到孔洞为球形孔。
虽然对本发明的描述是结合以上具体实施例进行的，但是，熟悉本技术领域的人员能够根据上述的内容进行许多替换、修改和变化是显而易见的。因此，所有这样的替代、改进和变化都包括在本发明权利要求的精神和范围内。
Claims (8)
1.一种具有球形孔结构多孔介电陶瓷的快速成型制备方法，其特征在于，包括如下步骤：
（1）制备多孔介电陶瓷所需水包油型乳状液：以水为溶剂，分别加入减水剂、乳化剂以及油相，充分搅拌均匀备用； （2）制备陶瓷悬浮液及胚体：将具有一定配比的高介电常数氧化物陶瓷粉体与水泥加入到上述乳状液中，经充分搅拌制得悬浮液，将其倒入相应模具，经固化后得到陶瓷胚体；
（3）干燥及烧结：将陶瓷胚体在常温下静置养护，在80 -120°C下干燥4~20小时后，在850~1380 °C烧结2-4小时制得具有球形孔结构多孔介电陶瓷；
其中，水的加入量为陶瓷粉体重量的19~25%，减水剂用量为高介电常数氧化物陶瓷粉体和水泥总重量的0.05~0.2%，乳化剂与油相的体积比为10~30：1，油相与高介电常数氧化物陶瓷粉体的比例为1~2mL：2g；高介电常数氧化物陶瓷粉体与水泥的重量比为8~25：1。
2.根据权利要求1所述的具有球形孔结构多孔介电陶瓷的快速成型制备方法，其特征在于：
所述高介电常数氧化物陶瓷粉体的介电常数为3000-50000。
3.根据权利要求1或2所述的具有球形孔结构多孔介电陶瓷的快速成型制备方法，其特征在于：所述高介电常数氧化物陶瓷粉体包括钛酸钡、锆钛酸铅、钛酸铋钠、铁酸铋、铌酸钾钠、钛酸铜钙中的任意一种。
4.根据权利要求1所述的具有球形孔结构多孔介电陶瓷的快速成型制备方法，其特征在于：所述的减水剂为三聚六偏、氨基高效减水剂、聚羧酸高效减水剂、阴离子石蜡微乳化剂中的任意一种。
5.根据权利要求1所述的具有球形孔结构多孔介电陶瓷的快速成型制备方法，其特征在于：所述的乳化剂为吐温、非离子石蜡微乳化剂、阳离子石蜡微乳化剂中的任意一种。
6.根据权利要求1所述的具有球形孔结构多孔介电陶瓷的快速成型制备方法，其特征在于：所述的油相为正辛烷、甘油酯、脂肪醇中的任意一种。
7.根据权利要求1所述的具有球形孔结构多孔介电陶瓷的快速成型制备方法，其特征在于：所述的水泥为铝酸盐secar68、铝酸盐secar71、铝酸盐secar80中的任意一种。
8.根据权利要求1所述的具有球形孔结构多孔介电陶瓷的快速成型制备方法，其特征在于：步骤（3）所述常温下静置养护的时间为10-48小时。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210245566.5A CN114560718A (zh) | 2022-03-14 | 2022-03-14 | 一种具有球形孔结构多孔介电陶瓷的快速成型制备方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210245566.5A CN114560718A (zh) | 2022-03-14 | 2022-03-14 | 一种具有球形孔结构多孔介电陶瓷的快速成型制备方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114560718A true CN114560718A (zh) | 2022-05-31 |
Family
ID=81720243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210245566.5A Pending CN114560718A (zh) | 2022-03-14 | 2022-03-14 | 一种具有球形孔结构多孔介电陶瓷的快速成型制备方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114560718A (zh) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817693A (zh) * | 2010-04-22 | 2010-09-01 | 武汉楚熊科技有限公司 | 一种基于纳米氧化铝的泡沫陶瓷制备方法 |
| CN103059581A (zh) * | 2011-10-18 | 2013-04-24 | 中国石油化工股份有限公司 | 一种抗冻性乳化沥青及其制备方法 |
| KR20140104534A (ko) * | 2013-02-18 | 2014-08-29 | 한서대학교 산학협력단 | 다공체 세라믹스 재료의 제조방법 및 이에 의해 제조된 다공체 세라믹스 재료 |
| CN105884380A (zh) * | 2014-11-19 | 2016-08-24 | 许智静 | 经由水泥固化法制备多孔陶瓷隔热材料方法 |
| CN107324833A (zh) * | 2016-04-28 | 2017-11-07 | 中国科学院上海硅酸盐研究所 | 一种多孔氮化硅陶瓷材料的制备方法 |
| CN111559918A (zh) * | 2020-05-27 | 2020-08-21 | 中国科学院上海硅酸盐研究所 | 一种微乳液结合冷冻干燥制备多孔陶瓷坯体的方法 |
| CN113185321A (zh) * | 2021-05-27 | 2021-07-30 | 洛阳理工学院 | 一种具有复合孔结构多孔SiOC陶瓷的制备方法 |
-
2022
- 2022-03-14 CN CN202210245566.5A patent/CN114560718A/zh active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817693A (zh) * | 2010-04-22 | 2010-09-01 | 武汉楚熊科技有限公司 | 一种基于纳米氧化铝的泡沫陶瓷制备方法 |
| CN103059581A (zh) * | 2011-10-18 | 2013-04-24 | 中国石油化工股份有限公司 | 一种抗冻性乳化沥青及其制备方法 |
| KR20140104534A (ko) * | 2013-02-18 | 2014-08-29 | 한서대학교 산학협력단 | 다공체 세라믹스 재료의 제조방법 및 이에 의해 제조된 다공체 세라믹스 재료 |
| CN105884380A (zh) * | 2014-11-19 | 2016-08-24 | 许智静 | 经由水泥固化法制备多孔陶瓷隔热材料方法 |
| CN107324833A (zh) * | 2016-04-28 | 2017-11-07 | 中国科学院上海硅酸盐研究所 | 一种多孔氮化硅陶瓷材料的制备方法 |
| CN111559918A (zh) * | 2020-05-27 | 2020-08-21 | 中国科学院上海硅酸盐研究所 | 一种微乳液结合冷冻干燥制备多孔陶瓷坯体的方法 |
| CN113185321A (zh) * | 2021-05-27 | 2021-07-30 | 洛阳理工学院 | 一种具有复合孔结构多孔SiOC陶瓷的制备方法 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhu et al. | Additive manufacturing of SiO2–Al2O3 refractory products via direct ink writing | |
| CN108558437B (zh) | 堇青石泡沫陶瓷材料及其制备方法以及过滤器 | |
| Yao et al. | Fabrication porous Si3N4 ceramics via starch consolidation–freeze drying process | |
| CN106588073A (zh) | 一种新型叠层多孔陶瓷的制备工艺 | |
| JP3124274B1 (ja) | 複合気孔構造を有するセラミックス多孔体の製造方法 | |
| Ribeiro et al. | Production of Al-rich sludge-containing ceramic bodies by different shaping techniques | |
| Garrido et al. | Zircon based ceramics by colloidal processing | |
| Karimi et al. | Cr2AlC MAX phase foams by replica method | |
| KR101458252B1 (ko) | 타설 물품, 타설 가능 조성물 및 이를 제조하는 방법 | |
| CN109320257B (zh) | 一种高强度高孔隙率多孔氮化硅陶瓷的制备方法 | |
| CN114560718A (zh) | 一种具有球形孔结构多孔介电陶瓷的快速成型制备方法 | |
| Camerucci et al. | Slip casting of cordierite and cordierite–mullite materials | |
| CN108083811A (zh) | 一种双梯度多孔陶瓷材料及其制备方法 | |
| Santacruz et al. | Preparation of cordierite materials with tailored porosity by gelcasting with polysaccharides | |
| Salomão | Porogenic behavior of water in high-alumina castable structures | |
| JPH0987008A (ja) | アルミナ質焼結体及びその製法 | |
| Persson | Surface and colloid chemistry in ceramic casting operations | |
| CN115196976A (zh) | 一种梯度多孔陶瓷及其制备方法 | |
| JP2880002B2 (ja) | セラミックス多孔体 | |
| Kandi et al. | Effect of monomers content and their ratio on gelcasting of fused silica ceramics | |
| CN106565248A (zh) | 一种分散剂水解失效固化陶瓷悬浮体的方法及陶瓷成型方法 | |
| Becher et al. | Ceramics sintered directly from sol-gels | |
| US10077213B1 (en) | Method for fabricating an alumina body having nano-sized open-cell pores that are stable at high temperatures | |
| Rahman et al. | Effect of thermal treatment on properties and microstructure of porous alumina | |
| CN1286768C (zh) | 一种可以烧成陶瓷和硬质合金器件的橡皮泥及其制备方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220531 |