A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation and application of artificial hip joint prosthesis ceramic
The invention discloses a preparation method of artificial hip joint prosthesis ceramic, and relates to the technical field of new materials, and the preparation method comprises the following steps: S1, preparing raw materials: adopting nano aluminum oxide as a matrix, and adding nano zirconium oxide powder and two additives chromium oxide and strontium oxide; s2, granulating: uniformly mixing the raw materials in the S1, and performing spray granulation to obtain uniform particles; S3, sintering: performing cold isostatic pressing, sintering and heat preservation on the uniform particles obtained in the S2, and then performing hot isostatic pressing and heat preservation to obtain the composite ceramic material. According to the preparation method, the sintering activity of a matrix is improved by adopting nano aluminum oxide powder, the strength and toughness of the aluminum oxide ceramic matrix are improved by adding nano zirconium oxide to inhibit grain growth of aluminum oxide, and then trace chromium oxide and strontium oxide are added to be chemically combined with aluminum oxide to form strontium chromate aluminum plate-shaped crystals, so that crack propagation deviates, and the strength and toughness of the ceramic matrix are improved. The strength of the zirconium oxide toughened aluminum oxide ceramic is further improved.
本发明公开了人工髋关节假体陶瓷的制备，涉及新材料技术领域，包括以下步骤：S1、原料：采用纳米氧化铝为基体，添加一种纳米氧化锆粉体和两种添加剂氧化铬、氧化锶；S2、制粒：将S1中原料均匀混合，通过喷雾造粒获得均匀粒子S3、烧制：将S2中获得的均匀粒子经过冷等静压、烧结并保温，再经过热等静压，保温后制得复合陶瓷材料。本发明通过采用纳米的氧化铝粉体，提升基体的烧结活性，通过添加纳米氧化锆，抑制氧化铝的晶粒长大，提高氧化铝陶瓷基体的强度和韧性，再通过添加微量的氧化铬和氧化锶，与氧化铝化合形成铬酸锶铝板状晶体，使得裂纹扩展发生偏移，进一步提升氧化锆增韧氧化铝陶瓷的强度。
Preparation and application of artificial hip joint prosthesis ceramic
The invention discloses a preparation method of artificial hip joint prosthesis ceramic, and relates to the technical field of new materials, and the preparation method comprises the following steps: S1, preparing raw materials: adopting nano aluminum oxide as a matrix, and adding nano zirconium oxide powder and two additives chromium oxide and strontium oxide; s2, granulating: uniformly mixing the raw materials in the S1, and performing spray granulation to obtain uniform particles; S3, sintering: performing cold isostatic pressing, sintering and heat preservation on the uniform particles obtained in the S2, and then performing hot isostatic pressing and heat preservation to obtain the composite ceramic material. According to the preparation method, the sintering activity of a matrix is improved by adopting nano aluminum oxide powder, the strength and toughness of the aluminum oxide ceramic matrix are improved by adding nano zirconium oxide to inhibit grain growth of aluminum oxide, and then trace chromium oxide and strontium oxide are added to be chemically combined with aluminum oxide to form strontium chromate aluminum plate-shaped crystals, so that crack propagation deviates, and the strength and toughness of the ceramic matrix are improved. The strength of the zirconium oxide toughened aluminum oxide ceramic is further improved.
本发明公开了人工髋关节假体陶瓷的制备，涉及新材料技术领域，包括以下步骤：S1、原料：采用纳米氧化铝为基体，添加一种纳米氧化锆粉体和两种添加剂氧化铬、氧化锶；S2、制粒：将S1中原料均匀混合，通过喷雾造粒获得均匀粒子S3、烧制：将S2中获得的均匀粒子经过冷等静压、烧结并保温，再经过热等静压，保温后制得复合陶瓷材料。本发明通过采用纳米的氧化铝粉体，提升基体的烧结活性，通过添加纳米氧化锆，抑制氧化铝的晶粒长大，提高氧化铝陶瓷基体的强度和韧性，再通过添加微量的氧化铬和氧化锶，与氧化铝化合形成铬酸锶铝板状晶体，使得裂纹扩展发生偏移，进一步提升氧化锆增韧氧化铝陶瓷的强度。
Preparation and application of artificial hip joint prosthesis ceramic
人工髋关节假体陶瓷的制备及应用
TAN YICHENG (author) / ZHU ZUOXIANG (author) / FU RAN (author) / CAI QUN (author)
2024-02-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
A61F
FILTERS IMPLANTABLE INTO BLOOD VESSELS
,
Filter in Blutgefäße implantierbar
/
A61K
Zubereitungen für medizinische, zahnärztliche oder kosmetische Zwecke
,
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
/
A61L
Verfahren oder Vorrichtungen zum Sterilisieren von Stoffen oder Gegenständen allgemein
,
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL
/
A61Q
SPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
,
Spezifische Verwendung von Kosmetika oder ähnlichen Zubereitungen
Zirconia ceramic bone implantation prosthesis and preparation method thereof
| European Patent Office | 2023
Preparation method of high-strength porous ceramic ocular prosthesis seat
| European Patent Office | 2021
Clinical experience with all-ceramic prosthesis
| British Library Conference Proceedings | 2001
Bionic enamel zirconia ceramic material block, dental prosthesis and preparation method
| European Patent Office | 2021