JPS5945976A - Apatite-titanium complex material and manufacture - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to apatite-titanium composite J5 for medical use, and a method for producing the same.

Conventionally, for example, Inblan used for South II <K> and materials used for living organisms are 24? It has been revealed that apatite ceramics are superior in terms of their affinity for J, but they have a strong F'η property of 71<inferior points and a tl1 point in practical terms. On the other hand, in terms of strength, metals (some of the edged b's have aj characteristics, and even the metals of city 111 have an affinity for cow iho! can be expected b
[, L not.

Aluminum JrA profit is 1'! Kumitsuku has excellent strength and has recently been attracting attention as a stable material with no toxicity to living organisms, but in terms of toughness, it is in the level of the apatite type 1, lamic, and l1j1. Exit shows which object 11I ('L).

Therefore, in the present invention, apatite-based [Biramic's affinity for bovine body] 1! [/! r, and metal 'vi
By adding the toughness of the steel, it makes up for its shortcomings and provides a useful advantage as an in-bran.

That is, the invention of item 1 of the present invention is a sintered ceramic body formed by sintering apatite or quartz and a bi-sub-glass type frit. This article outlines an apatite-titanium composite material that is characterized by being made by integrating sintered metals that are sintered in one step.

Avatar r1 (well, as mentioned above, it is suitable as a sintered body for 1 to 1 month), but when quartz powder is added to it, it expands and shrinks during firing. In addition, titanium, which is used in sintered metals, is lightweight, has a high toughness of 111, and is non-toxic. J
, it compensates for the drawbacks of the sintered ceramic body and becomes an excellent implant material.

The invention of item 2 is Avatai 1-Powder! i(>-100%
, quartz powder 0...50% bar (A glass frit 1
~Ceramic yield made by adding 1 to 15% of powder by external grinding, and "r t If < $5) end of 50 to 75%,
By combining the Ti metal powder 25 to 50% with a metal advantage that makes it possible to add 0 to 5% of Avatai 1 to powder by external machining, it is possible to create an inert i'JI M tri vacuum atmosphere (-1200 to 50%).
Avatar r+ is characterized by being sintered at 1300°C.
- This is based on the manufacturing method of titanium-based composite +411.

The invention of Section 2 (hereinafter referred to as "Apatite used for lamic monthly production") is the last part of the 11th edition of the invention. is preferable because it reduces the effect of Avatai 1~.

Actually, bio-glass frit is used as a sintering aid for ceramics, but it costs 1,200 to 1,300 yen.
There is an effect of auxiliary agent to avoid sintering in T;
, against the biological body of the parent 11 eyes and the joint Δ size in January (January)
- This is the result of the Shirato effect of affinity.

Bioglass is a glass with a good glass affinity of 11.1 and is suitable for use in this defense. 0
220. O~40.0%, 8λ2030~5.0%,
B20j 35. (To l, 45.0%, l” 20
h4.0-20.0%, C, a Q 1.0-9.0
%, Na2()IO・~15.0% There is a -6 silk example with 4%. Such bioglass is 1000-14
It is melted at 00°C and used as a frit.

This Bi-A million-based frit 1- (1% powder) has no effect, and addition of more than 15% reduces the effect of apatite and softens during sintering at 1200 to -1300°C. This is not preferable because it causes deformation and foaming.

11 Hiramic (A material) does not exhibit an expansion rate as shown in FIG. 1 as shown in FIG. 1, a shrinkage rate as shown in FIG. 2 as shown in FIG.

The TiH4 powder in the metal material of the present invention has the effect of shrinking during firing and adjusting the firing shrinkage rate, and the apatite powder has the effect of adjusting the expansion rate of the sintered body by 1Ml. -1-ill4 is! )()%, the shrinkage rate of the sintered metal monthly rate is more impressive than that of the sintered ceramic body. 1.1 Patite powder exceeds 5%, and metal material 1 of 11!j
Damage-C: ``11 times too many.''

Such a sintered body of metal + A Fl (j, 1- within the range of the silk formation as shown in Figure 3) and Figure 4 (J shown C) has a shrinkage rate and a strong bending electric current. Small.

1 - Marked lamic month a: q metal (A rate is, for example, as shown in Fig. 5, add metal monthly rate 1 to 21 by bu 1 nos molding etc. and remove lamic + A $312. A composite powder molded body is used as a shell layer.The compositions of both materials are selected based on the shrinkage rates shown in Figs.

n Is the powder molded product not acceptable? 1Ii1! 1: Li (sintering is carried out in an empty atmosphere, i.e., in the case of an inert atmosphere) in a fulbone gas stream, or on a lifting platform in an internal atmosphere.
' 1-orr or less, 1200-. 1300'CF sintered number. This ifb+ Iαα4, butane sintering)
Product 1α is 1200-・140 (1℃, on the other hand)' Since the sintering eddy current of Bakite is 1100-1300℃, the sintering 1α range of both products is 1200-1300℃.
It was taken from In an inert or vacuum atmosphere lf <
For example, the presence of the oxygen valve 1'E is not preferable because titanium will be oxidized.

According to the present invention, a composite having a two-layer structure in which the core is metallized and the outer shell is sintered and ceramic is obtained. The expansion III coefficients of Hiramic and gold 1+A are almost equal, and an intermediate layer of titanium oxide with a thickness of 20 to 3071 m is formed at the interface, and the bond between the two layers is strong.

The use of apatite ceramic for the outer shell has excellent biocompatibility, and the use of titanium for the core makes it extremely
! A high-strength material Y′i was added to the medical inductor I
- The wood is so useful that it roars.

Also, since it is based on the powder sintering method, it has the advantage that the shape can be freely shaped.

Next, examples will be explained.

V) A, 132 types of 8 compounds were prepared in the composition shown in the table below. , the middle level in the table is heavy fi1%.

Table △ [3 2l T! l-14$5) end
! −+ 0 6 (
1A Ti1Il-powder 50 40 months Avatai 1~Powder (external cutting) 10 Example Avata I'l-powder 70 60E1 English
W) Not yet 30
4 0 shell Frit I・(Outer cutting) 53 The frit used for the outer shell is Na co 3:St '0
2: (Ea III] o4 @ 21120
:Ca CO3: Na 2 ()・l”32051
0t120-2: 3: 2: 1: 2(
The dry method) 17 compound with medium ω ratio) was melted and fritted at 0°C to give I.

A, 13 and t) using acrylic buying - (granulated and dry) 5) Pressure of the two-layer structure as shown in Figure!
5) Mold the body 2.1. Just (゛, these are 12!+
(1°(', 'C:]' during firing)
child.

As a result, ]a becomes metallized, and the outer shell becomes sintered ceramic (
) I this one layer) f/> 3Kj complex is 1! I was beaten. ] The interface between A and the outer shell is a titanium oxide layer of 20 to 30 Ilm with strong /r bonding and <'L・)(I
child.

Although the above example shows the case of inert atmosphere-C sintering, the same example 1) was also obtained by sintering in vacuum.

[Brief explanation of the drawing]

Figure 1 is a graph showing the expansion ratio of [hy')mic+4 ratio used in the present invention, Figure 2 is a graph showing the shrinkage rate and strength, Figure 4 shows the expansion rate of the material and the graph shows the contraction rate.
FIG. 5 is a perspective view showing an example of the molded product of the embodiment. 1...=11 2...Outer shell 1ηh'[
Applicant Ningjlti Ceramic Co., Ltd. Attorney Hide Komatsu Hatake

Claims (2)

[Claims] (1) A sintered ceramic body made by adding quartz to a sintered ceramic body and sintering it together with titanium or apatite. Avatai is characterized by being made of composite metal materials! ~-Ditane series + A
$A. (2) Ceramic + made by adding 1 to 15% of PiΔ Karasu-based Furi 1 to 50 to 100% (1!, the same applies hereinafter) of Avatai 1 powder and 0 to 50% of 6 powder by external machining.
J l'31, -r f Ll 4 powder 50-75%
, - Composite a metal material obtained by adding 25 to 50% of Avatai 1 to 50% of Avatai 1 to 5% of outer cutting 'cθ,
Baked at 1200-1300℃ in an inert or clean atmosphere
llcJ- A method for producing an apatite-titanium composite material.