CN113582691B - 一种钨/钽酸盐球形粉体的制备方法 - Google Patents

一种钨/钽酸盐球形粉体的制备方法 Download PDF

Info

Publication number
CN113582691B
CN113582691B CN202110913835.6A CN202110913835A CN113582691B CN 113582691 B CN113582691 B CN 113582691B CN 202110913835 A CN202110913835 A CN 202110913835A CN 113582691 B CN113582691 B CN 113582691B
Authority
CN
China
Prior art keywords
spherical powder
powder
tantalate
tungsten
raw materials
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.)
Active
Application number
CN202110913835.6A
Other languages
English (en)
Other versions
CN113582691A (zh
Inventor
冯晶
汪俊
屈晨凯
李振军
王峰
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.)
Shaanxi Tianxuan Coating Technology Co ltd
Original Assignee
Shaanxi Tianxuan Coating Technology 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 Shaanxi Tianxuan Coating Technology Co ltd filed Critical Shaanxi Tianxuan Coating Technology Co ltd
Priority to CN202110913835.6A priority Critical patent/CN113582691B/zh
Publication of CN113582691A publication Critical patent/CN113582691A/zh
Application granted granted Critical
Publication of CN113582691B publication Critical patent/CN113582691B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/495Shaped 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
    • 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
    • C04B35/626Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605Treating the starting powders individually or as mixtures
    • 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
    • C04B35/626Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605Treating the starting powders individually or as mixtures
    • C04B35/62695Granulation or pelletising
    • 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
    • C04B35/64Burning or sintering processes
    • 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
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208Calcium oxide or oxide-forming salts thereof, e.g. lime
    • 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
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3251Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof
    • C04B2235/3255Niobates or tantalates, e.g. silver niobate
    • 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
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3258Tungsten oxides, tungstates, or oxide-forming salts thereof
    • C04B2235/326Tungstates, e.g. scheelite
    • 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
    • C04B2235/50Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54Particle size related information
    • C04B2235/5418Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
    • 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
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607Thermal properties, e.g. thermal expansion coefficient

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

本发明公开了一种钨/钽酸盐球形粉体的制备方法,按比例称取原料和熔盐,原料包括CaWO4和Ta2O5;将原料、熔盐和无水乙醇球磨混合,直至混合均匀,将混合后的粉末依次进行干燥、过筛和烧结;对烧结好的产物依次进行粉碎和球磨,利用压滤机除去粉末溶液中的水;向球磨后的产物中加入粘结剂、去离子水和消泡剂,得到喷雾浆料;使用喷雾浆料进行喷雾造粒,制备得到球形粉体;将球形粉体进行煅烧处理,得到钨/钽酸盐球形粉体;本发明制备的通过离心式喷雾造粒法制备出CaWTa2O9球形粉体,该粉体中粒径均匀、流动性好、球形率高,可有效提高其作为热障涂层的热学及力学性能。

Description

一种钨/钽酸盐球形粉体的制备方法
技术领域
本发明属于陶瓷粉体制备技术领域,尤其涉及一种钨/钽酸盐球形粉体的制备方法。
背景技术
氧化钇稳定氧化锆(YSZ)是目前在燃气轮机和涡轮发动机上应用最广泛的TBCs材料。NASA~Lewis的工作表明在YSZ体系中,Y2O3的最佳含量为6~8wt%,但是YSZ材料同样存在一些缺点。首先是相稳定性问题,6~8wt%的YSZ实际上以一种亚稳的t’相形式存在,当温度高于1200℃时,t’相会分解为该温度下的平衡相四方相(t)和立方相(c),冷却过程中四方相会转变为单斜相(m),相转变过程中伴随较大的体积变化,将会导致涂层中产生裂纹甚至涂层的剥落,因此YSZ的使用温度往往限制在1200℃以下。
CaWTa2O9相比目前使用的7-8YSZ热导率和热扩散系数更低,在高温下没有相变,有很好的相稳定性,目的产品有望作为新型耐高温,抗氧化,抗磨损陶瓷材料。现有的CaWTa2O9通过固相法制备,如申请号为202011149302.7的专利申请公开文本。但是,该方法制备的产品粒径均匀性较差,球形率较低。
发明内容
本发明的目的是提供一种钨/钽酸盐球形粉体的制备方法,以提升粉体的球形率,增加粒径均匀性,进而提高粉体的流动性。
本发明采用以下技术方案:一种钨/钽酸盐球形粉体的制备方法,包括以下步骤:
按比例称取原料和熔盐,原料包括CaWO4和Ta2O5
将原料、熔盐和无水乙醇球磨混合,直至混合均匀,将混合后的粉末依次进行干燥、过筛和烧结;
对烧结好的产物依次进行粉碎和球磨;
向球磨后的产物中加入粘结剂、去离子水和消泡剂,得到喷雾浆料;
使用喷雾浆料进行喷雾造粒,制备得到球形粉体;
将球形粉体进行煅烧处理,得到钨/钽酸盐球形粉体;球形粉体的粒度为10~100μm。
进一步地,CaWO4和Ta2O5的纯度均>99.9%,粒径均为100~800nm,且CaWO4和Ta2O5的摩尔比为1:1。
进一步地,原料与熔盐的质量比为(1~2):(0.1~1)。
进一步地,烧结温度为900~1500℃,烧结时间为2~10h。
进一步地,粘结剂的制备方法为:
把粉末PVA和去离子水混合后加温到80~90℃,保温60~120min制得;其中,粉末PVA和去离子水的质量比为(9~12):(1~2)。
进一步地,在喷雾浆料制备过程中,球磨后的产物、去离子水、粘结剂、消泡剂的质量比为(8~9):(4~5):(1~2):(0.03~0.04)。
进一步地,喷雾造粒参数为:
喷雾造粒机的进风温度为240~250℃,出风温度为150~160℃,喷头频率为35~50Hz。
进一步地,煅烧处理为:除胶温度为1000~1200℃,保温4~5h后随炉冷却。
本发明的有益效果是:本发明制备的通过离心式喷雾造粒法制备出CaWTa2O9球形粉体,此外,加入熔盐有助于降低反应温度和时间,加入熔盐后,煅烧温度从1700~1800℃降至制备900~1500℃,煅烧时间从10~30h降至2~10h;采用压滤机除去粉末溶液中的水,有利于提高生产效率,节约时间成本;此外,将喷雾造粒后的粉末进行除胶处理,可有效避免后续热喷涂过程中引入杂质,提高涂层的纯度和稳定性;该粉体中粒径均匀、流动性好、球形率高,可有效提高其作为热障涂层的热学及力学性能,并且转化和生产效率较高,生产成本低,操作简单稳定,控制方便,容易实现自动化作业。
附图说明
图1为本发明实施例1制得产物的SEM图谱。
具体实施方式
下面结合附图和具体实施方式对本发明进行详细说明。
本发明公开了一种钨/钽酸盐球形粉体的制备方法,包括以下步骤:
按比例称取原料和熔盐,原料包括钨酸钙CaWO4和五氧化二钽Ta2O5。在本发明中,CaWO4和Ta2O5的纯度均>99.9%,粒径均为100~800nm,且CaWO4和Ta2O5的摩尔比为1:1。原料与熔盐的质量比为(1~2):(0.1~1),即钨酸钙CaWO4和五氧化二钽Ta2O5的整体质量与熔盐的质量比为(1~2):(0.1~1)。更为具体的二者的合成化学式为CaWO4+Ta2O5=CaWTa2O9
将原料、熔盐和无水乙醇球磨混合,直至混合均匀。具体的,将原料、熔盐和无水乙醇一起放置于球磨罐中混合、密封后置于行星式球磨机上球磨,使其能够混合均匀,球料比为(4~5):(1~2),球磨机的转速为300~500r/min,球磨时间为180~360min。
将混合后的粉末依次进行干燥、过筛和烧结。干燥温度为60~80℃,干燥时间为15~30小时,过筛时将粉末过300目筛。烧结温度为900~1500℃,烧结时间为2~10h。
对烧结好的产物依次进行粉碎和球磨;可以采用破碎机和球磨机进行,球磨后利用压滤机去除粉末溶液中的水。球磨机把破碎后的粉末球磨至纳米或微米,利用氧化锆球进行球磨,球料比为(4~5):(1~2),球磨时间为180~360min,球磨机转速为300~600r/min,粒度分布为500nm~1000nm。
利用压滤机将粉末溶液中的水除去后,再按比例加入粘结剂、去离子水和消泡剂,得到喷雾浆料;消泡剂用于去除浆料表层的气泡。消泡剂可以选择正辛醇。在喷雾浆料制备过程中,球磨后需要利用压滤机去除溶液中的水,并烘干后得到粉末产物,其中,粉末产物、去离子水、粘结剂、消泡剂的质量比为(8~9):(4~5):(1~2):(0.03~0.04)。
在喷雾造粒之前需要对浆料进行搅拌,搅拌10~60分钟。然后使用喷雾浆料进行喷雾造粒,制备得到球形粉体;喷雾造粒参数为:喷雾造粒机的进风温度为240~250℃,出风温度为150~160℃,喷头频率为35~50Hz。
将制备好的球形粉体在高温下煅烧处理去除其中的粘结剂,除胶温度为1000~1200℃,保温4~5h,得到钨/钽酸盐球形粉体;球形粉体的粒径为10~100μm。
作为一种具体实现方法,粘结剂的制备方法为:把粉末PVA和去离子水混合后加温到80~90℃,保温60~120min制得粘结剂胶体;其中,粉末PVA和去离子水的质量比为(9~12):(1~2)。
本发明所制备的钨/钽酸盐球形粉球形率>99%,流动性好,满足大气等离子喷涂技术的要求,可满足热障涂层使用要求。通过喷雾造粒机参数控制,可得到不同粒径的球形粉,得到最佳级配的球形喷涂粉末,提高喷涂涂层的致密度。本发明通过离心式喷雾造粒法将CaWTa2O9制备成粒径均匀、流动性好、球形率高的球形粉体,可有效提高其作为热障涂层的热学及力学性能,本发明转化和生产效率较高,生产成本低,操作简单稳定,控制方便,容易实现自动化作业。
实施例1:
本实施例包括以下步骤:
称取钨酸钙CaWO4 1440g,五氧化二钽Ta2O5 2210g,熔盐Na2SO4 365g,无水乙醇3Kg,一起放置于球磨罐中混合、密封后置于行星式球磨机上球磨360min(转速为600r/min,氧化锆球重16Kg),使其能够混合均匀,然后将球磨好的溶液在80℃下干燥24小时后过300目筛,将其在1500℃下预烧10小时;
利用破碎机把长大变硬的颗粒破碎,称取10Kg氧化锆球和2Kg混合粉末,5Kg去离子水置于球磨机中球磨至800nm(球磨时间为360min,球磨机转速为600r/min),利用压滤机除去粉末溶液中的水;称取900g PVA粉末和1Kg去离子水置于化胶机中加温到90℃,保温120min,得到粘结剂胶体;取球磨好的粉末1.6Kg,去离子水900g,粘结剂150g,消泡剂8ml,将浆料搅拌60分钟,利用喷雾干燥设备对浆料进行造粒制备得到球形粉体,喷雾造粒机的进风温度为250℃,出风温度为150℃,喷头频率为50Hz;将制备球形粉体在1000℃下煅烧5h后随炉冷却,得到热喷涂用钽酸盐球形粉体,球形粉体的粒径为10~50μm。本实施例制备的CaWTa2O9球形度>99%,流动性好,如图1所示的SEM图谱,所用原料CaWO4用于制备热障涂层材料尚属首例。
实施例2:
称取钨酸钙CaWO4 1440g,五氧化二钽Ta2O5 2210g,熔盐Na2SO4 1825g,无水乙醇3Kg,一起放置于球磨罐中混合、密封后置于行星式球磨机上球磨300min(转速为600r/min,氧化锆球重14Kg),使其能够混合均匀,然后将球磨好的溶液在80℃下干燥24小时后过300目筛,将其在900℃下预烧2小时。
利用破碎机把长大变硬的颗粒破碎,称取14Kg氧化锆球和3Kg混合粉末,4Kg去离子水置于球磨机中球磨至1000nm(球磨时间为360min,球磨机转速为600r/min),利用压滤机除去粉末溶液中的水;称取1000g PVA粉末和1.5kg去离子水置于化胶机中加温到80℃,保温100min;称取压滤后的粉末2.4Kg,去离子水1.2Kg,粘结剂300g,消泡剂12ml,将浆料搅拌60分钟,利用喷雾干燥设备对浆料进行造粒制备得到球形粉体,喷雾造粒机的进风温度为245℃,出风温度为160℃,喷头频率为40Hz;将制备球形粉体在1100℃下煅烧5h后随炉冷却,得到热喷涂用钨/钽酸盐球形粉体,球形粉体的粒径为10~100μm。
本发明制备的通过离心式喷雾造粒法制备出CaWTa2O9球形粉体,该粉体中粒径均匀、流动性好、球形率高,可有效提高其作为热障涂层的热学及力学性能,并且转化和生产效率较高,生产成本低,操作简单稳定,控制方便,容易实现自动化作业。

Claims (5)

1.一种钨/钽酸盐球形粉体的制备方法,其特征在于,包括以下步骤:
按比例称取原料和熔盐,所述原料包括CaWO4和Ta2O5;所述原料与熔盐的质量比为(1~2):(0.1~1);
将所述原料、熔盐和无水乙醇球磨混合,直至混合均匀,将混合后的粉末依次进行干燥、过筛和烧结;
对烧结好的产物依次进行粉碎和球磨;
向球磨后的产物中加入粘结剂、去离子水和消泡剂,得到喷雾浆料;在所述喷雾浆料制备过程中,所述球磨后的产物、去离子水、粘结剂、消泡剂的质量比为(8~9):(4~5):(1~2):(0.03~0.04);
使用所述喷雾浆料进行喷雾造粒,制备得到球形粉体;所述喷雾造粒参数为:
喷雾造粒机的进风温度为240~250℃,出风温度为150~160℃,喷头频率为35~50Hz;
将所述球形粉体进行煅烧处理,得到钨/钽酸盐球形粉体;所述球形粉体的粒径为10~100μm,所述钨/钽酸盐球形粉体为CaWTa2O9
2.如权利要求1所述的一种钨/钽酸盐球形粉体的制备方法,其特征在于,所述CaWO4和Ta2O5的纯度均>99.9%,粒径均为100~800nm,且所述CaWO4和Ta2O5的摩尔比为1:1。
3.如权利要求1所述的一种钨/钽酸盐球形粉体的制备方法,其特征在于,所述烧结温度为900~1500℃,烧结时间为2~10h。
4.如权利要求1-3任一所述的一种钨/钽酸盐球形粉体的制备方法,其特征在于,所述粘结剂的制备方法为:
把粉末PVA和去离子水混合后加温到80~90℃,保温60~120min制得;其中,所述粉末PVA和去离子水的质量比为(9~12):(1~2)。
5.如权利要求1所述的一种钨/钽酸盐球形粉体的制备方法,其特征在于,所述煅烧处理为:除胶温度为1000~1200℃,保温4~5h后随炉冷却。
CN202110913835.6A 2021-08-10 2021-08-10 一种钨/钽酸盐球形粉体的制备方法 Active CN113582691B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110913835.6A CN113582691B (zh) 2021-08-10 2021-08-10 一种钨/钽酸盐球形粉体的制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110913835.6A CN113582691B (zh) 2021-08-10 2021-08-10 一种钨/钽酸盐球形粉体的制备方法

Publications (2)

Publication Number Publication Date
CN113582691A CN113582691A (zh) 2021-11-02
CN113582691B true CN113582691B (zh) 2023-03-10

Family

ID=78256806

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110913835.6A Active CN113582691B (zh) 2021-08-10 2021-08-10 一种钨/钽酸盐球形粉体的制备方法

Country Status (1)

Country Link
CN (1) CN113582691B (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106967953A (zh) * 2017-04-13 2017-07-21 乐延伟 一种基于缺陷萤石结构的稀土铌酸盐的发光热障涂层体系及其制备方法
CN111056848A (zh) * 2019-12-13 2020-04-24 武汉科技大学 一种llzto造粒粉的制备方法
CN111153434A (zh) * 2020-01-17 2020-05-15 华南理工大学 一种用于热喷涂的锆酸镧球形粉体制备方法
CN112250440A (zh) * 2020-10-23 2021-01-22 陕西天璇涂层科技有限公司 一种固相法制备低热导高温热障陶瓷CaWTa2O9的方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106967953A (zh) * 2017-04-13 2017-07-21 乐延伟 一种基于缺陷萤石结构的稀土铌酸盐的发光热障涂层体系及其制备方法
CN111056848A (zh) * 2019-12-13 2020-04-24 武汉科技大学 一种llzto造粒粉的制备方法
CN111153434A (zh) * 2020-01-17 2020-05-15 华南理工大学 一种用于热喷涂的锆酸镧球形粉体制备方法
CN112250440A (zh) * 2020-10-23 2021-01-22 陕西天璇涂层科技有限公司 一种固相法制备低热导高温热障陶瓷CaWTa2O9的方法

Also Published As

Publication number Publication date
CN113582691A (zh) 2021-11-02

Similar Documents

Publication Publication Date Title
CN101182207B (zh) 一种含氧化钇的喷涂粉末及其制备方法
CN110407213B (zh) 一种(Ta, Nb, Ti, V)C高熵碳化物纳米粉体及其制备方法
CN112358293B (zh) 热障涂层用粉末、其制备方法和应用以及具有热障涂层的复合材料
CN108675824B (zh) 一种等离子物理气相沉积热障涂层用多孔稀土锆酸盐粉末及其制备方法
CN108858681B (zh) 批量化制备小球素坯的设备及氚增殖剂纳米结构钛酸锂陶瓷小球的制备方法
CN104129990A (zh) 一种等离子喷涂用空心球形ysz粉末的制备方法
CN110776323A (zh) 一种高纯度超细高熵陶瓷粉末及其制备方法
CN109592982A (zh) 一种碳化硼核中子吸收材料及制备方法
CN112125686A (zh) 一种熔盐隔离制备碳化硅包覆石墨的方法
CN113372115A (zh) 一种离心式喷雾造粒法制备钽酸盐(Y/Al/RE)3TaO7空心球粉体的方法
CN113603140A (zh) 一种离心式喷雾造粒法制备双稀土钽酸盐空心球粉体的方法
CN113800480A (zh) 一种n型碲化铋基热电材料及其制备方法与应用
CN112456971A (zh) 一种氧化镍基陶瓷靶材材料的冷等静压成型制备方法
CN106431433B (zh) 一种致密颗粒镁钙材料及其制备方法
CN114988896A (zh) 一种高发射率涂层及其应用
CN112624741B (zh) 一种流延成型制备高纯氧化镁陶瓷承烧板生坯的方法
CN113582691B (zh) 一种钨/钽酸盐球形粉体的制备方法
CN113716607A (zh) 一种离心式喷雾造粒法制备稀土钽酸盐空心球粉体的方法
CN112250452B (zh) 一种氧化铝水基涂覆料及其制备方法、涂覆坩埚的方法
CN112851337A (zh) 一种热喷涂用钇稳定氧化锆铪粉体及其制备方法
CN113683418B (zh) 一种用于热喷涂的钽酸盐球形粉体CaMoTa2O9及其制备方法
CN115196970A (zh) 一种高流动性AlON球形粉体的制备方法
CN113880586A (zh) 一种二硼化铪-二硅化钽复合粉体及其制备方法
CN114213124A (zh) 一种中介电常数微波介质陶瓷材料及其制备方法
CN113716959B (zh) 一种用于热障涂层的球形粉体及其制备方法

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
GR01 Patent grant
GR01 Patent grant