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Dental titanium alloy material

A titanium alloy and dental technology, applied in the field of dental titanium alloy materials, can solve the problems of low hardness and strength, high cost, poor wear resistance, etc., and achieve improved wear resistance, lower melting point and cost, and good biocompatibility. Effect

Active Publication Date: 2016-08-03
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the defects of existing titanium alloy materials such as high cost, low hardness and strength, and poor wear resistance, the present invention adds molybdenum, zirconium, selenium and trace elements with better biocompatibility, and uses an intermediate alloy to add, Combined with specific control means and process flow, the melting point and cost of the alloy system can be reduced, and its phase structure can be controlled at the same time to improve the wear resistance of the alloy, which has certain significance for the development and utilization of selenium resources

Method used

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  • Dental titanium alloy material
  • Dental titanium alloy material
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Ingredients

[0018] Molybdenum 150g

[0019] Selenium 20 grams

[0020] Ce 0.5 g

[0021] Sponge titanium balance

[0022] Total weight: 1000 grams

[0023] 2. Melting

[0024] First put titanium sponge, alloying elements and intermediate alloys into a vacuum non-consumable water-cooled copper crucible electric arc furnace, and evacuate the furnace to 1×10 -3 Pa, and then high-purity inert gas is introduced to repeatedly wash the furnace to eliminate the influence of the atmosphere during the alloy smelting process. Through the arc generated between the arc port on the anode of the copper crucible and the cathode of the tungsten tip, a huge amount of heat is released, and the alloy is melted rapidly to obtain an ingot. Finally, the ingot was turned over 5 times and remelted repeatedly to ensure the composition uniformity of the alloy.

[0025] 3. Main technical indicators of the titanium alloy prepared in this embodiment:

[0026] The hardness of the alloy: ...

Embodiment 2

[0028] 1. Ingredients

[0029] Molybdenum 150g

[0030] Selenium 40g

[0031] Lanthanum 1 g

[0032] Sponge titanium balance

[0033] Total weight: 1000 grams

[0034] 2, smelting method is the same as embodiment 1;

[0035] 3. Main technical indicators of the titanium alloy prepared in this embodiment:

[0036] The hardness of the alloy: HV=389, yield strength: 1344MPa, compressive strength: 1880MPa, density: 5.07g / cm 3 .

Embodiment 3

[0038] 1. Ingredients

[0039] Molybdenum 150g

[0040] Selenium 60g

[0041] Ce 1 g

[0042] Sponge titanium balance

[0043] Total weight: 1000 grams

[0044] 2, smelting method is the same as embodiment 1;

[0045] 3. Main technical indicators of the titanium alloy prepared in this embodiment:

[0046] The hardness of the alloy: HV=406, yield strength: 1315MPa, compressive strength: 1600MPa, density: 5.11g / cm 3 .

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Abstract

The invention discloses a dental Ti-Mo-Zr-Se titanium alloy material. The titanium alloy material comprises the following components: titanium, molybdenum, zirconium, selenium and trace elements, wherein the weight percentage of Mo is 10-15%, the weight percentage of Zr is 0-6%, the weight percentage of Se element is 1-6%, the weight percentage of the trace elements is 0.05-0.2%, and the balance of Ti. The trace elements can be adjusted according to the performance coupling requirement, at least one of rare earth elements lanthanum and cerium, and phase composition is mainly a beta phase and a few Se-rich phase. The performance index of the material is characterized in that Vickers hardness is 350-450 HV, yield strength is 1250-1400 MPa, and compressive strength is 1380-1910 MPa.

Description

technical field [0001] The invention belongs to a medical titanium alloy material, in particular to a dental titanium alloy material, which is mainly used in oral restoration, gum implantation and the like. Background technique [0002] Dental caries, periodontal disease, and irregular dentition are the three most common dental diseases at present. Problems such as swelling, pain, and tooth loss caused by dental diseases will cause great troubles to people's lives. In addition, with the aging population in our country, the demand for dental materials has also greatly increased. Therefore, the research and development of dental materials need to be paid attention to. As early as 300 BC, people have begun to use metal materials for missing teeth. Dental metal materials mainly include stainless steel, Co-Cr alloy, Ni-Ti alloy, precious metal alloy, etc. Since stainless steel, Co-Cr alloy, and Ni-Ti alloy generally contain toxic elements such as Ni and Cr, long-term use will ...

Claims

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Application Information

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IPC IPC(8): C22C14/00A61K6/04
Inventor 朱达川杨晨
Owner SICHUAN UNIV
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