CN105801115A - 一种牙科用氧化锆基底饰面瓷及其制备方法 - Google Patents

一种牙科用氧化锆基底饰面瓷及其制备方法 Download PDF

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CN105801115A
CN105801115A CN201610118726.4A CN201610118726A CN105801115A CN 105801115 A CN105801115 A CN 105801115A CN 201610118726 A CN201610118726 A CN 201610118726A CN 105801115 A CN105801115 A CN 105801115A
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zirconia
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zirconium oxide
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张斌
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    • 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
    • C04B35/48Shaped 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
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    • 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
    • C04B35/645Pressure sintering
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    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
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    • 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
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    • 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
    • C04B2235/3224Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3225Yttrium oxide or oxide-forming salts thereof

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Abstract

本发明涉及一种牙科用氧化锆基底饰面瓷及其制备方法。本发明将氧化锆(ZrO2)细粉加入稳定剂Y2O323%、CaO7%,氧化锆(ZrO2)总量约70%,以该复合细粉、交联剂和分散剂为原料,通过注凝成型制备生坯,在T=1700℃条件下(保温2‑4h)热压烧结制备本发明陶瓷。强度为800~1000MPa,韧性达20~25MPa·m↑。本发明提出氧化锆与饰面瓷难以匹配的关键在于二者膨胀系数的不匹配以及氧化锆相变过程中的体积突变,并通过对氧化锆陶瓷基底成分的调整解决二者匹配问题,同时降低玻璃陶瓷软化点,使其在氧化锆陶瓷相变区间处于软化状态,对陶瓷的体积变化不敏感突破以氧化锆陶瓷作为基底组分取代氧化铝的技术瓶颈,复合成新的牙科全瓷材料。

Description

一种牙科用氧化锆基底饰面瓷及其制备方法
技术领域
本发明属生物医药领域,具体涉及一种牙科用氧化锆基底饰面瓷及其制备方法。
背景技术
目前,氧化锆因具有高韧性、高强度等优点被认为是更为理想的口腔全瓷材料。但其与饰面瓷的结合问题成为它在此领域应用的瓶颈问题。国内大部分研究是通过对饰面瓷的调整,来满足与氧化锆陶瓷的匹配问题,但所研制饰面瓷的颜色难以达到临床应用的要求。
发明内容
针对现有技术的不足,本发明一种牙科用氧化锆基底饰面瓷及其制备方法。通过对氧化锆基底成分的调整和改变烧结技术来达到与玻璃饰面瓷相匹配,从而形成新的牙科全瓷材料。
一种牙科用氧化锆基底饰面瓷,该基底饰面瓷为以氧化锆为基底、Y2O3、CaO为稳定剂复合基底基底饰面瓷。
各组分比例按照摩尔比为为氧化锆70%、Y2O323%、CaO7%。
一种牙科用氧化锆基底饰面瓷的制备方法,按照以下步骤进行:
(1)将氧化锆(ZrO2)细粉加入稳定剂CaO7,ZrO2制备成复合细粉,组分比例按照摩尔比为氧化锆70%、Y2O323%、CaO7%;
(2)以该复合细粉、交联剂和分散剂为原料,通过注凝成型制备生坯,在T=1700℃条件下(保温2-4h)热压烧结制备,制备出来的陶瓷的强度为800~1000MPa,韧性达20~25MPa·m。
本发明提出氧化锆与饰面瓷难以匹配的关键在于二者膨胀系数的不匹配以及氧化锆相变过程中的体积突变,并通过对氧化锆陶瓷基底成分的调整解决二者匹配问题,同时降低玻璃陶瓷软化点,使其在氧化锆陶瓷相变区间处于软化状态,对陶瓷的体积变化不敏感突破以氧化锆陶瓷作为基底组分取代氧化铝的技术瓶颈,复合成新的牙科全瓷材料。
本发明具有以下有益效果及优点:
1.提出了氧化锆与饰面瓷难以匹配的关键在于二者膨胀系数的不匹配以及氧化锆相变过程中的体积突变,
2.通过对氧化锆陶瓷基底成分的调整解决二者匹配问题,从而与技术成熟的饰面玻璃陶瓷相匹配,突破以氧化锆陶瓷作为基底组分取代氧化铝的技术瓶颈,复合成新的牙科全瓷材料
具体实施方式
一种牙科用氧化锆基底饰面瓷,该基底饰面瓷为以氧化锆为基底、Y2O3、CaO为稳定剂复合基底基底饰面瓷。
各组分比例按照摩尔比为为氧化锆70%、Y2O323%、CaO7%。
一种牙科用氧化锆基底饰面瓷的制备方法,按照以下步骤进行:
(1)将氧化锆(ZrO2)细粉加入稳定剂CaO7,ZrO2制备成复合细粉,组分比例按照摩尔比为氧化锆70%、Y2O323%、CaO7%;
(2)以该复合细粉、交联剂和分散剂为原料,通过注凝成型制备生坯,在T=1700℃条件下(保温2-4h)热压烧结制备,制备出来的陶瓷的强度为800~1000MPa,韧性达20~25MPa·m。

Claims (3)

1.一种牙科用氧化锆基底饰面瓷,其特征在于:该基底饰面瓷是一种以氧化锆为基底、以Y2O3、CaO为稳定剂的复合基底饰面瓷。
2.根据权利要求1所述的一种牙科用氧化锆基底,其特征在于:各组分比例按照摩尔比为为氧化锆70%、Y2O323%、CaO7%。
3.一种牙科用氧化锆基底饰面瓷的制备方法,其特征在于按照以下步骤进行:
(1)将氧化锆(ZrO2)细粉加入稳定剂CaO7,ZrO2制备成复合细粉,组分比例按照摩尔比为氧化锆70%、Y2O323%、CaO7%;
(2)以该复合细粉、交联剂和分散剂为原料,通过注凝成型制备生坯,在T=1700℃条件下(保温2-4h)热压烧结制备,制备出来的陶瓷的强度为800~1000MPa,韧性达20~25MPa·m。
CN201610118726.4A 2016-03-01 2016-03-01 一种牙科用氧化锆基底饰面瓷及其制备方法 Pending CN105801115A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109942316A (zh) * 2019-02-01 2019-06-28 中国医科大学附属口腔医院 一种增强二氧化锆表面遮色瓷抗剪切强度的涂层方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109942316A (zh) * 2019-02-01 2019-06-28 中国医科大学附属口腔医院 一种增强二氧化锆表面遮色瓷抗剪切强度的涂层方法

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