CN109608199A - 一种氮化物改性碳化硼复合陶瓷的制备方法 - Google Patents

一种氮化物改性碳化硼复合陶瓷的制备方法 Download PDF

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CN109608199A
CN109608199A CN201811205473.XA CN201811205473A CN109608199A CN 109608199 A CN109608199 A CN 109608199A CN 201811205473 A CN201811205473 A CN 201811205473A CN 109608199 A CN109608199 A CN 109608199A
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nitride
ceramic
boron carbide
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徐涛
张塬
伊恒彬
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LIAONING YIFEI TECHNOLOGY Co Ltd
Jiangsu New Ifi Technology Co Ltd
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LIAONING YIFEI TECHNOLOGY Co Ltd
Jiangsu New Ifi Technology Co Ltd
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    • 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
    • C04B35/563Shaped 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 boron 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
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • 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
    • C04B2235/38Non-oxide ceramic constituents or additives
    • C04B2235/3852Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
    • C04B2235/3865Aluminium nitrides
    • 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
    • C04B2235/38Non-oxide ceramic constituents or additives
    • C04B2235/3852Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
    • C04B2235/3886Refractory metal nitrides, e.g. vanadium nitride, tungsten nitride

Abstract

本发明提出的是一种氮化物改性碳化硼复合陶瓷的制备方法。经过陶瓷原料配合与加工,预压成型和真空氮化烧结步骤,制成氮化硼复合陶瓷成品。采用本发明方法,使所制得的氮化物改性氮化硼复合陶瓷致密度达到2.51g/cm3,抗弯强度338MPa,硬度32.10GPa,具有良好的力学性能。大尺寸陶瓷片的密度大,与普通碳化硼陶瓷片相比抗弯强度和硬度均有显著的提高。适宜作为改性氮化硼复合陶瓷的制备方法应用。

Description

一种氮化物改性碳化硼复合陶瓷的制备方法
技术领域
本发明提出的是国防军工防护防爆领域,具体地说是一种氮化物改性碳化硼复合陶瓷的制备方法。
背景技术
碳化硼(B4C)是一种硬度仅次于金刚石与立方氮化硼的高硬度材料,也是一种共价键很强的化合物,具有密度低、高硬度、高模量、耐磨蚀等良好的性能,在国防、机械、航空航天、石油化工等领域均有广泛应用。这种材料是主要的陶瓷板防弹材料,在轻质装甲材料中拥有较大的应用潜力。
虽然碳化硼以其优异的性能得到了很广泛的应用,但是由于碳化硼陶瓷的断裂韧性很低、原子间以牢固的共价键连接、原子激活能高、烧结活化能低,因而,获得大尺寸高密度的烧结体非常困难。
AIN材料具有高弹性模量、高抗弯强度等优点,而且碳化硼和氮化铝在晶格常数、晶型和密度等物理性能方面也比较接近,能够形成固溶相。氮化铝材料还具有优良的热传导性能,可以促进热量由烧结体外部向芯部的传递,有利于加热均匀化,这些对复合材料的制备都是有利的。
TiN是一种新型陶瓷材料,它己作为其它复合材料的增强相而应用,显示出良好的开发价值和应用前景。TiN作为增强相的引入,可以提高其强度和韧性,借助二步成型技术制备高均匀、高致密素坯,利用无压烧结制备碳化硼复合陶瓷,因此本文采用BN、ALN、TiN等氮化物改性碳化硼复合陶瓷,经球磨,形成亚微米级细小的氮化物、碳化硼超细粉体。无压烧结形成致密的氮化物改性碳化硼复合陶瓷,以提高碳化硼陶瓷材料的相对密度。
发明内容
为了获得高性能的陶瓷材料,本发明提出了一种氮化物改性碳化硼复合陶瓷的制备方法。该方法通过氮化硼改性,解决氮化硼复合陶瓷制备的技术问题。
本发明解决技术问题所采用的方案是:
将碳化硼原材料和ALN、TiN氮化物、酚醛树脂和PVA树脂混合,混合后加入到研磨罐中,采用氮化硅球进行研磨,球磨24h,过300目筛,获得平均粒径在0.65μm的亚微米级原料,放出料后,在200℃下烘干复合原料。
将烘干后的复合原料进行粉碎,过数次筛后,得到设定粒级的陶瓷原料,将陶瓷原料加入到模具型腔中经过80MPa-220MPa的压力压制成型后,进行预烧结,烧结温度控制在1000℃-1200℃,成型后修整柸体尺寸,压制成厚度为30mm,边长为300mm以上的大尺寸防弹陶瓷坯体。
将成型好的防弹陶瓷柸体加入到真空无压烧结炉中,在无压氮气保护下进行反应烧结,烧结温度在2000℃-2360℃,烧结时间0.25h~0.5h,烧结试样经过打磨抛光后,得到氮化物改性碳化硼复合陶瓷。
所述酚醛树脂和PVA树脂用作粘结剂使用。
积极效果,采用本发明方法,使所制得的氮化物改性氮化硼复合陶瓷致密度达到2.51g/cm3,抗弯强度338MPa,硬度32.10GPa,具有良好的力学性能。大尺寸陶瓷片的密度大,与普通碳化硼陶瓷片相比抗弯强度和硬度均有显著的提高。适宜作为改性氮化硼复合陶瓷的制备方法应用。
具体实施方式
将碳化硼原材料和ALN、TiN氮化物、酚醛树脂和PVA树脂混合,混合后加入到研磨罐中,采用氮化硅球进行研磨,球磨24h,过300目筛,获得平均粒径在0.65μm的亚微米级原料,放出料后,在200℃下烘干复合原料。
将烘干后的复合原料进行粉碎,过数次筛后,得到设定粒级的陶瓷原料,将陶瓷原料加入到模具型腔中经过80MPa-220MPa的压力压制成型后,进行预烧结,烧结温度控制在1000℃-1200℃,成型后修整柸体尺寸,压制成厚度为30mm,边长为300mm以上的大尺寸防弹陶瓷坯体。
将成型好的防弹陶瓷柸体加入到真空无压烧结炉中,在无压氮气保护下进行反应烧结,烧结温度在2000℃-2360℃,烧结时间0.25h~0.5h,烧结试样经过打磨抛光后,得到氮化物改性碳化硼复合陶瓷。
所述酚醛树脂和PVA树脂用作粘结剂使用。
特点:
由于采用ALN、TiN原料与氮化硼原料混合,经过配料、粉碎研磨,过筛,粉体预烧结和真空无压氮化烧结,制成氮化物改性氮化硼复合陶瓷。
制备氮化物改性氮化硼复合陶瓷,过程严谨,工艺简单,烧结性能好,产品强度高,且具有防弹性能,适合在安全与军工方面使用。

Claims (2)

1.一种氮化物改性碳化硼复合陶瓷的制备方法,其特征在于:
将碳化硼原材料和ALN、TiN氮化物、酚醛树脂和PVA树脂混合,混合后加入到研磨罐中,采用氮化硅球进行研磨,球磨24h,过300目筛,获得平均粒径在0.65μm的亚微米级原料,放出料后,在200℃下烘干复合原料;
将烘干后的复合原料进行粉碎,过数次筛后,得到设定粒级的陶瓷原料,将陶瓷原料加入到模具型腔中经过80MPa-220MPa的压力压制成型后,进行预烧结,烧结温度控制在1000℃-1200℃,成型后修整柸体尺寸,压制成厚度为30mm,边长为300mm以上的大尺寸防弹陶瓷坯体;
将成型好的防弹陶瓷柸体加入到真空无压烧结炉中,在无压氮气保护下进行反应烧结,烧结温度在2000℃-2360℃,烧结时间0.25h~0.5h,烧结试样经过打磨抛光后,得到氮化物改性碳化硼复合陶瓷。
2.根据权利要求1所述的一种氮化物改性碳化硼复合陶瓷的制备方法,其特征在于:所述酚醛树脂和PVA树脂用作粘结剂使用。
CN201811205473.XA 2018-10-09 2018-10-09 一种氮化物改性碳化硼复合陶瓷的制备方法 Pending CN109608199A (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60226459A (ja) * 1984-04-20 1985-11-11 三菱マテリアル株式会社 超硬質セラミツクスとその製造法
JPS60255670A (ja) * 1984-05-30 1985-12-17 三菱マテリアル株式会社 超硬質セラミツクスとその製造法
US5258337A (en) * 1992-06-18 1993-11-02 W. R. Grace & Co.-Conn. Reaction processing of AlN/B4 C composites
JP2003137655A (ja) * 2001-10-25 2003-05-14 Denki Kagaku Kogyo Kk 炭化硼素−窒化アルミニウム焼結体とその製造方法
CN106242572A (zh) * 2016-07-30 2016-12-21 余姚市巧迪电器厂 一种碳化硼基复合陶瓷模具材料及其制备方法
CN107417280A (zh) * 2017-07-25 2017-12-01 苏州纳朴材料科技有限公司 一种常压烧结的碳化硼陶瓷制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60226459A (ja) * 1984-04-20 1985-11-11 三菱マテリアル株式会社 超硬質セラミツクスとその製造法
JPS60255670A (ja) * 1984-05-30 1985-12-17 三菱マテリアル株式会社 超硬質セラミツクスとその製造法
US5258337A (en) * 1992-06-18 1993-11-02 W. R. Grace & Co.-Conn. Reaction processing of AlN/B4 C composites
JP2003137655A (ja) * 2001-10-25 2003-05-14 Denki Kagaku Kogyo Kk 炭化硼素−窒化アルミニウム焼結体とその製造方法
CN106242572A (zh) * 2016-07-30 2016-12-21 余姚市巧迪电器厂 一种碳化硼基复合陶瓷模具材料及其制备方法
CN107417280A (zh) * 2017-07-25 2017-12-01 苏州纳朴材料科技有限公司 一种常压烧结的碳化硼陶瓷制备方法

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