DD219017A3 - MACHINABLY BIOACTIVE GLASS CERAMICS - Google Patents
MACHINABLY BIOACTIVE GLASS CERAMICS Download PDFInfo
- Publication number
- DD219017A3 DD219017A3 DD23772882A DD23772882A DD219017A3 DD 219017 A3 DD219017 A3 DD 219017A3 DD 23772882 A DD23772882 A DD 23772882A DD 23772882 A DD23772882 A DD 23772882A DD 219017 A3 DD219017 A3 DD 219017A3
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- glass
- apatite
- mass
- ceramics
- mica
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
- C03C4/0007—Compositions for glass with special properties for biologically-compatible glass
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/12—Phosphorus-containing materials, e.g. apatite
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/16—Halogen containing crystalline phase
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
- A61F2310/00293—Ceramics or ceramic-like structures containing a phosphorus-containing compound, e.g. apatite
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Dermatology (AREA)
- Medicinal Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Molecular Biology (AREA)
- Glass Compositions (AREA)
- Materials For Medical Uses (AREA)
Abstract
Die Erfindung betrifft maschinell bearbeitbare bioaktive Glaskeramik und kann insbesondere fuer prothetische Zwecke angewendet werden. Das Ziel der Erfindung besteht darin, eine biologisch aktive Glaskeramik mit besonders guenstigen mechanischen Eigenschaften zu entwickeln. Aufgabe ist, eine biologisch aktive Glaskeramik mit besonders guenstiger maschineller Bearbeitbarkeit zu erzeugen. Diese Aufgabe wird dadurch geloest, dass ein Ausgangsglas der Zusammensetzung in Masse-% SiO2 19-52, Al2O3 12-23, MgO 5-15, R2O 2-10, CaO 9-30, P2O5 4-24, F 0,5-7 unter der Bedingung, dass R2O die Summe aus 0-8 Masse-% Na2O und 0-8 Masse-% K2O darstellt, nach dem Erschmelzen thermisch behandelt wird. Hauptkristallphasen der Glaskeramik sind Glimmer und Apatit.The invention relates to machinable bioactive glass ceramic and can be used in particular for prosthetic purposes. The object of the invention is to develop a biologically active glass ceramic with particularly favorable mechanical properties. The object is to produce a biologically active glass ceramic with particularly favorable machinability. This object is achieved in that a starting glass of the composition in mass% SiO2 19-52, Al2O3 12-23, MgO 5-15, R2O 2-10, CaO 9-30, P2O5 4-24, F 0.5- 7 under the condition that R2O represents the sum of 0-8 mass% Na2O and 0-8 mass% K2O is thermally treated after melting. Main crystal phases of the glass-ceramic are mica and apatite.
Description
Die Steuerung des Kristallisationsprozesses des Ausgangsglases zur erfindungsgemäßen Glaskeramik setzt die Kenntnis der Mikrostrukturbildungsprozesse in den Gläsern voraus. Wie bekannt ist, gelingt eine Steuerung des Kristallisationsprozesses m gunstigsten durch eine gezielte Beeinflussung der Phasentrennung der Gläser. Erfindungsgemaß erfolgt die Ausscheidung von Apatitkristallen im Glas in der Weise, daß sie aus den an Ca2--P2O5-F"-reichen tropfchenförmigen Entmischungsbezirken wachsen. Da Volumenanteil, Anzahl und Große dieser Entmischungsbezirke je nach Wahl der chemischen Zusammensetzung, Wahl der Schmelzbedingungen und thermischen Behandlung eingestellt werden können, ist die Apatitphase in ihrem Volumenanteil, Kristallgröße und Vernetzungsgrad steuerbar.The control of the crystallization process of the starting glass for the glass ceramic according to the invention requires the knowledge of the microstructure forming processes in the glasses. As is known, a control of the crystallization process is most easily achieved by a targeted influencing of the phase separation of the glasses. According to the invention, the precipitation of apatite crystals in the glass takes place in such a way that they grow from the segregation zones which are dripping at Ca 2 -P 2 O 5 -F "rich volumes, number and size of these demixing districts, depending on the choice of chemical composition the melting conditions and thermal treatment can be adjusted, the apatite phase is controllable in their volume fraction, crystal size and degree of crosslinking.
Neben der Apatitkristallisation läuft der Bildungsmechanismus von Phlogopitkristallen ab und damit ist die Grundlage für neuartige Eigenschaftskombinationen (maschinelle Bearbeitbarkeit und biologische Aktivität) geschaffen. Phlogopit ist aufgrund der bevorzugten Spaltbarkeit in der 001-Ebene für die gute Bearbeitbarkeit der erfindungsgemäßen Glaskeramik verantwortlich und Apatit ist die Voraussetzung für die biologische Aktivität. Diese erfindungsgemäße Glaskeramik zeigt im Tierversuch hervorragende Bioverträglichkeit sowie Verbundeigenschaften zwischen Knochen und Implantat.In addition to apatite crystallization, the formation mechanism of phlogopite crystals is discontinued, thus providing the basis for novel property combinations (machinability and biological activity). Phlogopite is due to the preferred cleavage in the 001 level responsible for the good workability of the glass-ceramic according to the invention and apatite is the prerequisite for the biological activity. This glass-ceramic according to the invention shows excellent biocompatibility and composite properties between bone and implant in animal experiments.
Die Tabelle 1 liefert einen Überblick über die chemischen Zusammensetzungen in Masse-% der erfindungsgemäßen GläserTable 1 provides an overview of the chemical compositions in% by mass of the glasses according to the invention
und Glaskeramiken.and glass-ceramics.
Auf den Zusammenhang zwischen chemischer Zusammensetzung thermischer Behandlung der Gläser und den Kristallphasen weist Tabelle 2 hin. Damit wird die Steuerung des Kristallisationsmechanismus offensichtlich. Die Apatitkristalle, die in Tabelle als Apatit-Mischphase bezeichnet werden, bestehen im wesentlichen aus Fluor- und Hydroxylapatit. Die GlimmerkristalleTable 2 indicates the relationship between the chemical composition of thermal treatment of the glasses and the crystal phases. This makes the control of the crystallization mechanism obvious. The apatite crystals, which are referred to in the table as the apatite mixed phase, consist essentially of fluorine and hydroxylapatite. The mica crystals
stellen Natrium-Kalium-F luorophlogopite dar.represent sodium-potassium fluorophlogopites.
Die mechanischen Eigenschaften zeigen eine deutliche Abhängigkeit von den sich ausscheidenden Kristallphasen. Durch die gleichzeitige Phlogopit-Apatit- bzw. Phlogopit-Apatit-Anorthitkristallisation resultiert eine gute maschinelle Bearbeitbarkeit.The mechanical properties show a clear dependence on the precipitating crystal phases. The simultaneous phlogopite apatite or phlogopite apatite anorthite crystallization results in good machinability.
Mit Verringerung des Phlogopitanteils verschlechtert sich die maschinelle Bearbeitbarkeit. Gleichzeitig erhöht sich damit die Biegebruchfestigkeit der Glaskeramiken erheblich und erreicht Werte bis 220 MPa, wie Tabelle 3 zeigt.With reduction of phlogopite part, machinability deteriorates. At the same time, the flexural strength of the glass ceramics increases considerably and reaches values up to 220 MPa, as shown in Table 3.
51,3 16,3 7,4 3,2 4,3 1,6 9,5 6,451.3 16.3 7.4 3.2 4.3 1.6 9.5 6.4
36,036.0
20,020.0
10,910.9
2,32.3
3,93.9
4,94.9
12,512.5
9,59.5
31,631.6
19,719.7
13,813.8
0,90.9
6,86.8
3,23.2
13,913.9
10,110.1
Kristallphasencrystal phases
34,834.8
21,921.9
8,38.3
7,87.8
3,23.2
13,813.8
10,110.1
1313
34,734.7
19,519.5
8,48.4
2,22.2
3,73.7
3,53.5
16,016.0
12,012.0
1 000/21 000/2
1 000/11 000/1
610/5,1000/1 1 000/0,5610 / 5,1000 / 1 1 000 / 0.5
1 050/1 680/5,900/51 050/1 680 / 5,900 / 5
kontrollierte Abkühlung im Bereich 1 000 0C bis 500 0CControlled cooling in the range 1 000 0 C to 500 0 C.
1 000/1 1000/1 850/11 000/1 1000/1 850/1
Apatit-MischphaseApatite mixed phase
Phlogopitphlogopite
Anorthitanorthite
Apatit-MischphaseApatite mixed phase
Phlogopitphlogopite
Apatit-MischphaseApatite mixed phase
Phlogopitphlogopite
Apatit-MischphaseApatite mixed phase
Phlogopitphlogopite
Anorthitanorthite
Apatit-MischphaseApatite mixed phase
Phlogopitphlogopite
Apatit-MischphaseApatite mixed phase
Phlogopitphlogopite
Apatit-MischphaseApatite mixed phase
Phlogopitphlogopite
Anorthitanorthite
Apatit- M isch phaseApatite M isch phase
Phlogopitphlogopite
Apatit-MischphaseApatite mixed phase
Phlogopitphlogopite
Apatit- M isch ph aseApatite M isch ph ase
Phlogopitphlogopite
AnotthttAnotthtt
35,235.2
19,619.6
8,48.4
2,32.3
3,83.8
2,62.6
16,016.0
12,012.0
34,434.4
22,122.1
8,48.4
7,87.8
3,2 13,9 10,13.2 13.9 10.1
19,419.4
12,212.2
5,25.2
2,02.0
2,02.0
6,66.6
29,929.9
23,623.6
1515
34,034.0
19,019.0
11,011.0
2,22.2
3,63.6
5,05.0
13,213.2
12,012.0
30,330.3
17,017.0
15,015.0
14,314.3
10,710.7
Claims (1)
Anwendungsgebiet der ErfindungMachinable bioactive glass ceramic
Field of application of the invention
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD23772882A DD219017A3 (en) | 1982-02-26 | 1982-02-26 | MACHINABLY BIOACTIVE GLASS CERAMICS |
YU46083A YU46083A (en) | 1982-02-26 | 1983-02-25 | Process for the manufacturing of bioactive vitreous ceramics |
DE19833306648 DE3306648A1 (en) | 1982-02-26 | 1983-02-25 | Machinable, bioactive glass ceramics material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD23772882A DD219017A3 (en) | 1982-02-26 | 1982-02-26 | MACHINABLY BIOACTIVE GLASS CERAMICS |
Publications (1)
Publication Number | Publication Date |
---|---|
DD219017A3 true DD219017A3 (en) | 1985-02-20 |
Family
ID=5536933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD23772882A DD219017A3 (en) | 1982-02-26 | 1982-02-26 | MACHINABLY BIOACTIVE GLASS CERAMICS |
Country Status (3)
Country | Link |
---|---|
DD (1) | DD219017A3 (en) |
DE (1) | DE3306648A1 (en) |
YU (1) | YU46083A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4006379A1 (en) * | 1989-03-03 | 1991-04-18 | Univ Schiller Jena | Prodn. of implant with metal core |
CN111433165A (en) * | 2017-11-28 | 2020-07-17 | 康宁股份有限公司 | High liquidus viscosity bioactive glass |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4789649A (en) * | 1985-11-04 | 1988-12-06 | Veb Jenaer Glaswerk | Micaceous-cordierite-glass ceramic |
DE3643416A1 (en) * | 1986-01-27 | 1987-09-24 | Jenaer Glaswerk Veb | BIOACTIVE PERMANENT IMPLANTS |
JPS63102762A (en) * | 1986-10-20 | 1988-05-07 | 丸野 重雄 | Living body compatible composite and its production |
FR2646084B1 (en) * | 1989-04-20 | 1994-09-16 | Fbfc International Sa | BIOREACTIVE MATERIAL FOR FILLING BONE CAVITES |
DE4113021C2 (en) * | 1991-04-20 | 1995-01-26 | Carus Carl Gustav | Resorbable phosphate glasses and resorbable phosphate glass ceramics, process for their preparation and use |
DE4314817A1 (en) * | 1993-04-30 | 1994-11-03 | Ivoclar Ag | Opalescent glass |
DE4423793C1 (en) * | 1994-07-01 | 1996-02-22 | Ivoclar Ag | Phosphosilicate glass-ceramics containing leucite, process for their production and their use |
GB201010758D0 (en) | 2010-06-25 | 2010-08-11 | Queen Mary & Westfield College | Bioactive glass composition |
US9359243B2 (en) | 2014-05-13 | 2016-06-07 | Corning Incorporated | Transparent glass-ceramic articles, glass-ceramic precursor glasses and methods for forming the same |
CN105936588A (en) | 2015-02-28 | 2016-09-14 | 肖特玻璃科技(苏州)有限公司 | Glass ceramics capable of being mechanically processed and chemically tempered |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD132332B1 (en) * | 1977-05-25 | 1980-08-27 | Roland Ehrt | MACHINABLE GLIMMERIC GLASS CERAMICS AND METHOD OF MANUFACTURING THEM |
US4118237A (en) * | 1977-08-04 | 1978-10-03 | Corning Glass Works | Glass-ceramics displaying inherent lubricity |
-
1982
- 1982-02-26 DD DD23772882A patent/DD219017A3/en not_active IP Right Cessation
-
1983
- 1983-02-25 YU YU46083A patent/YU46083A/en unknown
- 1983-02-25 DE DE19833306648 patent/DE3306648A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4006379A1 (en) * | 1989-03-03 | 1991-04-18 | Univ Schiller Jena | Prodn. of implant with metal core |
DE4006379C2 (en) * | 1989-03-03 | 1999-06-10 | Univ Schiller Jena | Process for the production of bioactive and mechanically highly resilient implants |
CN111433165A (en) * | 2017-11-28 | 2020-07-17 | 康宁股份有限公司 | High liquidus viscosity bioactive glass |
Also Published As
Publication number | Publication date |
---|---|
DE3306648C2 (en) | 1991-10-02 |
DE3306648A1 (en) | 1983-09-22 |
YU46083A (en) | 1985-12-31 |
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Legal Events
Date | Code | Title | Description |
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UW | Conversion of economic patent into exclusive patent | ||
ENJ | Ceased due to non-payment of renewal fee |