CN107382364A - 一种轻量低损耗碳化硅系耐火材料及其制备方法 - Google Patents

一种轻量低损耗碳化硅系耐火材料及其制备方法 Download PDF

Info

Publication number
CN107382364A
CN107382364A CN201710526759.7A CN201710526759A CN107382364A CN 107382364 A CN107382364 A CN 107382364A CN 201710526759 A CN201710526759 A CN 201710526759A CN 107382364 A CN107382364 A CN 107382364A
Authority
CN
China
Prior art keywords
carborundum
loss
light weight
refractory material
weight low
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
Application number
CN201710526759.7A
Other languages
English (en)
Inventor
佘建锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changxing Hongkuang Furnace Burden Co Ltd
Original Assignee
Changxing Hongkuang Furnace Burden Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Changxing Hongkuang Furnace Burden Co Ltd filed Critical Changxing Hongkuang Furnace Burden Co Ltd
Priority to CN201710526759.7A priority Critical patent/CN107382364A/zh
Publication of CN107382364A publication Critical patent/CN107382364A/zh
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/06Porous 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
    • C04B38/063Preparing or treating the raw materials individually or as batches
    • C04B38/0635Compounding ingredients
    • C04B38/0645Burnable, meltable, sublimable materials
    • C04B38/0675Vegetable refuse; Cellulosic materials, e.g. wood chips, cork, peat, paper
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66Monolithic refractories or refractory mortars, including those whether or not containing clay
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81Coating or impregnation
    • C04B41/85Coating or impregnation with inorganic materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422Carbon
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/428Silicon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Ceramic Products (AREA)

Abstract

本发明涉及了一种轻量低损耗碳化硅系耐火材料及其制备方法,以碳化硅粉和造孔剂为原料成型生坯,高温生成碳化硅烧结体,并在碳化硅烧结体表面包裹了一层致密硅膜层。造孔剂保证了碳化硅系耐火材料的较高的气孔率,增加了材料的抗热震性,减轻了材料重量,节省了原料成本。硅膜层能够有效隔绝其内部材料与外界氧气接触,因此显著提高了碳化硅耐火材料的抗氧化性能,材料是否致密并不影响材料的稳定性和使用寿命。所用镀膜方法已经是工艺非常成熟的常用镀膜技术,工艺稳定,控制简单,调控镀膜的厚度、密度或者镀膜材料都非常方便,有利于工业生产应用。

Description

一种轻量低损耗碳化硅系耐火材料及其制备方法
技术领域
本发明涉及本发明涉及碳化硅系耐火材料,尤其涉及一种轻量低损耗碳化硅系耐火材料及其制备方法。
背景技术
SiC系耐火材料是人们早已知晓的一种优质耐火材料。具有强度高、导热系数大、抗震性好、耐磨损、抗侵蚀等优良高温性能,在冶金等工业部门有许多用途。尤其碳化硅还是极好的脱氧剂,用它可以加快炼钢速度,并便于控制化学成分,提高钢的质量。但是碳化硅的主要晶相是SiC,易氧化,为解决这个问题,人们采用了各种手段使碳化硅系耐火材料更加致密,减少材料内部与氧气接触的面积。
为了消除以上问题,人们还使用高强度且耐热性、耐氧化性及热传导性优良的含有Si作为金属Si相的含Si材料,如渗硅碳化硅耐火材料。即在重结晶碳化硅R-SiC的基础上进行液相或气相渗硅,R-SiC的气孔由游离硅填充,生成更加致密的渗硅碳化硅材料,不利于氧化发生,性能更加优良。但是降低气孔率,提高致密度会降低材料的抗热震系数,为保证优良的抗热震系数,传统的耐火材料一般都会保持20%左右的气孔率。
申请号为93112548.0的中国专利公开了一种高致密、低气孔率氮化硅-碳化硅-氧化物系统耐火材料,他通过添加氧化铝和氧化钇来结合SiC耐火材料,在致密度不降低的情况下提高了材料的抗热震系数,但是材料中氧化物的添加量在3-25wt%,而超过3%的氧化物添加量会使材料存在结合部的玻璃相增加,作为耐火材料必要的抗蠕变性降低,寿命缩短等一系列问题。
发明内容
为了解决上述技术问题,本发明提供了一种轻量低损耗碳化硅系耐火材料及其制备方法。
本发明的具体技术方案为:一种轻量低损耗碳化硅系耐火材料,以95-99wt%份碳化硅粉和1-5wt%造孔剂为原料成型生坯,高温生成碳化硅烧结体,在碳化硅烧结体表面包裹了一层致密硅膜层。
作为优选,所述的氮化硅系耐火材料由80-95wt%碳化硅、0.5-10wt%游离硅、0-5wt%游离碳、气孔和少量杂质组成。
作为优选,所述的硅膜层厚度在2-20μm。
作为优选,所述的造孔剂为生物质基造孔剂。
作为优选,所述的造孔剂为稻壳粉末。
作为优选,所述的烧结温度为2000-2050℃。
与现有技术对比,本发明的有益效果是:利用造孔剂保证了碳化硅系耐火材料的较高的气孔率,增加了材料的抗热震性,减轻了材料重量,节省了原料成本。材料不含氧化铝等氧化物,有好的抗蠕变性。造孔剂使用的是生物质造孔剂,尤其是稻壳作为碾米厂的加工副产品,约占稻谷总产量的20%,资源分布广泛且产量丰富,将稻壳作为烧结制品的造孔剂不仅有效的利用了粮食行业的副产品,而且提高了烧结制品的新能和产品附加值。同时,由于材料表面存在一层致密的硅膜层,防止碳化硅材料内部氧化,同时,硅膜层的表面在高温下也会氧化成SiO2,会使材料的抗氧化性能更加优异,这个过程还会促进炼钢过程中的脱氧,加快炼钢速度,提高钢的质量,因此材料是否致密并不影响材料的稳定性和使用寿命。
上述轻量低损耗碳化硅系耐火材料的制备方法是,以碳化硅粉和造孔剂为原料成型生坯,高温生成碳化硅烧结体,采用物理气相沉积法,在镀膜机中沉积硅膜层。
作为优选,所述的物理气相沉积法包括真空蒸镀、溅射镀膜、等离子体镀膜和离子镀。
作为优选,所述的镀膜机为真空离子镀膜机,利用电子束蒸发磁控溅射,或多弧蒸发离化技术沉积硅膜层。
与现有技术对比,本发明的有益效果是:这种镀膜方法已经是工艺非常成熟的常用镀膜技术,工艺稳定,控制简单,调控镀膜的厚度、密度或者镀膜材料都非常方便,有利于工业生产应用。
具体实施方式
下面结合实施例对本发明作进一步的描述。
实施例1
按照配方称取95wt%碳化硅粉和5wt%稻谷粉末,在2000℃高温烧结,生成碳化硅烧结体,冷却后破碎成颗粒,将颗粒放入真空离子镀膜机的真空腔体,沉积硅膜层,厚度为6μm。
实施例2
按照配方称取原99wt%碳化硅粉和1wt%稻谷粉末,在2050℃高温烧结,生成碳化硅烧结体,冷却后破碎成颗粒,将颗粒放入真空离子镀膜机的真空腔体,沉积硅膜层,厚度为16μm。
实施例3
按照配方称取98wt%碳化硅粉和2wt%稻谷粉末,在2000℃高温烧结,生成碳化硅烧结体,冷却后破碎成颗粒,将颗粒放入真空离子镀膜机的真空腔体,沉积硅膜层,厚度为20μm。
实施例4
按照配方称取96wt%碳化硅粉和4wt%稻谷粉末,在2050℃高温烧结,生成碳化硅烧结体,冷却后破碎成颗粒,将颗粒放入真空离子镀膜机的真空腔体,沉积硅膜层,厚度为2μm。
本发明中所用原料、设备,若无特别说明,均为本领域的常用原料、设备;本发明中所用方法,若无特别说明,均为本领域的常规方法。
以上所述,仅是本发明的较佳实施例,并非对本发明作任何限制,凡是根据本发明技术实质对以上实施例所作的任何简单修改、变更以及等效变换,均仍属于本发明技术方案的保护范围。

Claims (9)

1.一种轻量低损耗碳化硅系耐火材料,其特征在于:以95-99wt%份碳化硅粉和1-5wt%造孔剂为原料成型生坯,高温生成碳化硅烧结体,在碳化硅烧结体表面包裹了一层致密硅膜层。
2.如权利要求1所述的轻量低损耗碳化硅系耐火材料,其特征在于,所述的氮化硅系耐火材料由80-95wt%碳化硅、0.5-10wt%游离硅、0-5wt%游离碳、气孔和少量杂质组成。
3.如权利要求1所述的轻量低损耗碳化硅系耐火材料,其特征在于,所述的硅膜层厚度在2-20μm。
4.如权利要求1所述的轻量低损耗碳化硅系耐火材料,其特征在于,所述的造孔剂为生物质基造孔剂。
5.如权利要求1所述的轻量低损耗碳化硅系耐火材料,其特征在于,所述的造孔剂为稻壳粉末。
6.如权利要求1所述的轻量低损耗碳化硅系耐火材料,其特征在于,所述的烧结温度为2000-2050℃。
7.一种如权利要求1所述的轻量低损耗碳化硅系耐火材料的制备方法,其特征在于,以碳化硅粉和造孔剂为原料成型生坯,高温生成碳化硅烧结体,采用物理气相沉积法,在镀膜机中沉积硅膜层。
8.如权利要求7所述的轻量低损耗碳化硅系耐火材料的制备方法,其特征在于,所述的物理气相沉积法包括真空蒸镀、溅射镀膜、等离子体镀膜和离子镀。
9.如权利要求7所述的轻量低损耗碳化硅系耐火材料的制备方法,其特征在于,所述的镀膜机为真空离子镀膜机,利用电子束蒸发磁控溅射,或多弧蒸发离化技术沉积硅膜层。
CN201710526759.7A 2017-06-30 2017-06-30 一种轻量低损耗碳化硅系耐火材料及其制备方法 Pending CN107382364A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710526759.7A CN107382364A (zh) 2017-06-30 2017-06-30 一种轻量低损耗碳化硅系耐火材料及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710526759.7A CN107382364A (zh) 2017-06-30 2017-06-30 一种轻量低损耗碳化硅系耐火材料及其制备方法

Publications (1)

Publication Number Publication Date
CN107382364A true CN107382364A (zh) 2017-11-24

Family

ID=60334983

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710526759.7A Pending CN107382364A (zh) 2017-06-30 2017-06-30 一种轻量低损耗碳化硅系耐火材料及其制备方法

Country Status (1)

Country Link
CN (1) CN107382364A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114477963A (zh) * 2022-03-16 2022-05-13 武汉钢铁集团耐火材料有限责任公司 一种钢包罐沿砖及其制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85109647A (zh) * 1984-12-19 1986-08-27 普拉斯马英万特股份公司 带有保护涂层的碳或石墨体及其生产方法
CN101037318A (zh) * 2007-03-22 2007-09-19 浙江林学院 光触媒水泥木丝板及其生产方法
CN101323524A (zh) * 2008-04-15 2008-12-17 西安交通大学 一种定向排列孔碳化硅多孔陶瓷的制备方法
CN101555161A (zh) * 2008-04-11 2009-10-14 中国科学院金属研究所 一种提高碳化硅泡沫陶瓷高温抗氧化性能的表面改性方法
CN102144053A (zh) * 2008-09-05 2011-08-03 原子能与替代能源委员会 用于形成基于碳化硅的不粘涂层的方法
CN105481408A (zh) * 2016-01-08 2016-04-13 浙江长兴久鑫耐火材料有限公司 一种复合耐火砖
CN106365656A (zh) * 2016-08-31 2017-02-01 浙江科屹耐火材料有限公司 一种镁碳锆复合耐火材料及其制备方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85109647A (zh) * 1984-12-19 1986-08-27 普拉斯马英万特股份公司 带有保护涂层的碳或石墨体及其生产方法
CN101037318A (zh) * 2007-03-22 2007-09-19 浙江林学院 光触媒水泥木丝板及其生产方法
CN101555161A (zh) * 2008-04-11 2009-10-14 中国科学院金属研究所 一种提高碳化硅泡沫陶瓷高温抗氧化性能的表面改性方法
CN101323524A (zh) * 2008-04-15 2008-12-17 西安交通大学 一种定向排列孔碳化硅多孔陶瓷的制备方法
CN102144053A (zh) * 2008-09-05 2011-08-03 原子能与替代能源委员会 用于形成基于碳化硅的不粘涂层的方法
CN105481408A (zh) * 2016-01-08 2016-04-13 浙江长兴久鑫耐火材料有限公司 一种复合耐火砖
CN106365656A (zh) * 2016-08-31 2017-02-01 浙江科屹耐火材料有限公司 一种镁碳锆复合耐火材料及其制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114477963A (zh) * 2022-03-16 2022-05-13 武汉钢铁集团耐火材料有限责任公司 一种钢包罐沿砖及其制备方法

Similar Documents

Publication Publication Date Title
Zhou et al. Effects of yttria and magnesia on densification and thermal conductivity of sintered reaction‐bonded silicon nitrides
JP6766276B2 (ja) 酸化物スパッタリングターゲット及びその製造方法、並びに当該酸化物スパッタリングターゲットを用いて成膜した酸化物薄膜
Feng et al. Ablation resistance of TaC-modified HfC coating prepared by supersonic plasma spraying for SiC-coated carbon/carbon composites
US4029828A (en) X-ray target
JP4733890B2 (ja) SiO2を主成分とする膜の成膜方法
Hwang et al. Small amount TiB2 addition into B4C through sputter deposition and hot pressing
CN106431416A (zh) 热爆合成碳化锆、二硼化锆复相陶瓷粉末及其制备方法
CN107311671A (zh) 一种抗氧化碳化硅系耐火材料及其制备方法
Yan et al. Effect of spraying powders size on the microstructure, bonding strength, and microhardness of MoSi 2 coating prepared by air plasma spraying
CN107382364A (zh) 一种轻量低损耗碳化硅系耐火材料及其制备方法
CN108328605B (zh) 一种耐高温石墨烯散热膜及其制备方法
JPS6126564A (ja) 耐熱・耐摩耗性セラミツク材料の製造法
JP2007290875A (ja) 酸化チタン系焼結体およびその製造方法
JP4733930B2 (ja) 複合酸化物焼結体の製造方法及びその焼結体からなるスパッタリングターゲット
JP4860335B2 (ja) 導電性耐食部材及びその製造方法
EP3988518B1 (en) Sintering method for improving antioxidant performance of nitride bonded silicon carbide material
Budin et al. Effect of sintering atmosphere on the mechanical properties of sintered tungsten carbide
US20120211485A1 (en) Heat insulation material for microwave heating and method for manufacturing the same
JP4517331B2 (ja) 強度および耐スパッタ割れ性に優れた酸化チタンターゲットの製造方法
JPH0132193B2 (zh)
JP2002179485A (ja) 焼結用グラファイトトレー
JP3899501B2 (ja) 高熱発生切削ですぐれた耐摩耗性を発揮する表面被覆超硬材料製切削工具
JP3899500B2 (ja) 高熱発生切削ですぐれた耐摩耗性を発揮する表面被覆超硬材料製切削工具
JPH06220624A (ja) スパッタリング用ターゲットおよびその製造方法
CN105239049A (zh) γ-TiAl合金表面耐高温氧化的Al-Y梯度防护合金涂层及其制备方法

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: 20171124