CN109503185A - The zirconia ceramics material of nano aluminium oxide toughening enhancing and products thereof forming method - Google Patents
The zirconia ceramics material of nano aluminium oxide toughening enhancing and products thereof forming method Download PDFInfo
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Abstract
The present invention relates to the zirconia ceramics material of nano aluminium oxide toughening enhancing and products thereof forming methods;It is characterized by: material is made of the raw material of following weight parts: nano aluminium oxide (Al2O3) 1~5 part, industrial oxidation zirconium (ZrO2) 1~5 part, 90~95 parts of cubic polycrystal zirconia (3Y-TZP), lanthana (La2O3) 1~3 part, 1~3 part of magnesia (MgO), by weighing, mixing, wet grinding, mist projection granulating, molding, sintering, rough polishing, that essence throws process is obtained.The present invention can reduce the sintering temperature of zirconia ceramics, while improve the intensity and toughness of zirconia ceramics, make it have excellent wearability, abrasive media or abrasion-proof structure can be made, extend the service life of product.
Description
Technical field
The invention belongs to inorganic non-metallic material (ceramics) fields, the specifically zirconia ceramics of nano aluminium oxide toughening enhancing
Material and products thereof forming method.
Background technique
Zirconia ceramics has many advantages, such as high tenacity, high-flexural strength and high-wearing feature, thermal expansion coefficient close to steel, because
This is widely used in structural ceramics field.Mainly there are 3Y-TZP mill ball, ball valve ball seat, optical fiber sleeve, optical fiber contact pins, wrist-watch
Chain, shell, the fields such as mobile phone backboard.
How to study high tenacity, high-flexural strength and the high-wearing feature of enhancing zirconia ceramics material is those skilled in the art
The key issues of member's research.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of zirconia ceramics materials of nano aluminium oxide toughening enhancing
Formed product method, this nano aluminium oxide toughening enhancing zirconia ceramics material have good toughness and high machinery strong
Degree has excellent wearability, long service life in use, and cost is relatively low, and sexual valence is relatively high, the technology of use
Scheme is as follows:
The zirconia ceramics material formed product method of nano aluminium oxide toughening enhancing, with nano aluminium oxide, industrial oxidation
Zirconium (ZrO2), cubic polycrystal zirconia (3Y-TZP), lanthana (La2O3), magnesia (MgO) be raw material, parts by weight composition
Are as follows: nano aluminium oxide (Al2O3) 1~5 part, industrial oxidation zirconium (ZrO2) 1~5 part, cubic polycrystal zirconia (3Y-TZP) 90~95
Part, lanthana (La2O3) 1~3 part, 1~3 part of magnesia (MgO).
As a preferred embodiment of the above technical solution, the average grain diameter of the nano aluminium oxide is 50~100 nanometers.
As a preferred embodiment of the above technical solution, the average grain diameter of the cubic polycrystal zirconia is 0.7~0.9 micron.
As a preferred embodiment of the above technical solution, the average grain diameter of the industrial oxidation zirconium is 0.7~0.9 micron.
The formed product method of the zirconia ceramics material of nano aluminium oxide toughening enhancing above-mentioned specifically includes following step
It is rapid:
(1) by the nano aluminium oxide, industrial oxidation zirconium (ZrO2), cubic polycrystal zirconia (3Y-TZP), lanthana
(La2O3), magnesia (MgO) weighs in proportion and is sufficiently mixed to obtain A material;
(2) A material is passed through into wet grinding, and is processed into average grain diameter less than 0.5 micron, obtain B material;
(3) B is expected that spray-dried tower carries out drying granulation, drying tower intake air temperature is 370 DEG C, and air outlet temperature is
120 DEG C, 35 kilograms of evaporated water, obtain C material after the sufficiently drying of B material per hour;
D material is made by Rollig nodulizer in C material, using the PEG-2000 aqueous solution of 5% (wt) concentration as bonding agent
Or D material base part is made through cold isostatic compaction;
(8) by D material base part by dry kiln drying, drying temperature is 120 DEG C, and E material base part is obtained after drying;
(9) E material base part is fired through high temperature kiln, sintering temperature is 1350 DEG C to 1400 DEG C, soaking time 2-4
Hour, be within preferably 3 hours it is best, F is obtained after natural cooling and expects crude product;
(10) F material crude product is obtained into shaped article by rough polishing, finishing polish process.
The technical effects of the invention are that:
The zirconia ceramics material of nano aluminium oxide toughening enhancing of the present invention and products thereof forming method above-mentioned technical proposal
The toughness of cubic polycrystal zirconia is improved by addition nano aluminium oxide, while being added to a small amount of industrial oxidation zirconium and having saved original
Expect cost, and reduce sintering temperature using lanthana, magnesia, ensure that the aplitic texture of product, obtain product
Excellent wearability and intensity, had not only improved grinding working efficiency, but also saved cost in use.
It throws process by weighing mixing, wet grinding, mist projection granulating, molding, sintering, rough polishing, essence and is made.The present invention can drop
The sintering temperature of suboxides zircon ceramic, while the intensity and toughness of zirconia ceramics are improved, excellent wearability is made it have, it can
Abrasive media or abrasion-proof structure is made, extend the service life of product.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..Unless otherwise specified, embodiment
Used in the conventional means that are well known to those skilled in the art of technological means, raw materials used is commercial goods.
Embodiment 1
A kind of zirconia ceramics material of nano aluminium oxide toughening enhancing, with nano aluminium oxide, industrial oxidation zirconium (ZrO2)、
Cubic polycrystal zirconia (3Y-TZP), lanthana (La2O3), magnesia (MgO) be raw material, parts by weight composition are as follows: it is nano oxidized
Aluminium (Al2O3) 5 parts, industrial oxidation zirconium (ZrO2) 1 part, 90 parts of cubic polycrystal zirconia (3Y-TZP), lanthana (La2O3) 2 parts, oxygen
2 parts of change magnesium (MgO).
The average grain diameter of nano aluminium oxide is 50 nanometers.
The average grain diameter of cubic polycrystal zirconia is 0.7 micron.
The average grain diameter of industrial oxidation zirconium is 0.7 micron.
The formed product method of the zirconia ceramics material of nano aluminium oxide toughening enhancing above-mentioned specifically includes following step
It is rapid:
(1) by the nano aluminium oxide, industrial oxidation zirconium (ZrO2), cubic polycrystal zirconia (3Y-TZP), lanthana
(La2O3), magnesia (MgO) weighs by aforementioned ratio and is sufficiently mixed to obtain A material;
(2) A material is passed through into wet grinding, and is processed into average grain diameter less than 0.5 micron, obtain B material;
(3) B is expected that spray-dried tower carries out drying granulation, drying tower intake air temperature is 370 DEG C, and air outlet temperature is
120 DEG C, 35 kilograms of evaporated water, obtain C material after the sufficiently drying of B material per hour;
(4) D material is made by Rollig nodulizer in C material, using the PEG-2000 aqueous solution of 5% (wt) concentration as bonding
D material base part is made through cold isostatic compaction in agent;
(5) by D material base part by dry kiln drying, drying temperature is 120 DEG C, and E material base part is obtained after drying;
(6) E material base part is fired through high temperature kiln, sintering temperature is 1350 DEG C, soaking time 2 hours, natural
F material crude product is obtained after cooling;
(7) F material crude product is obtained into shaped article by rough polishing, finishing polish process.
Embodiment 2
The zirconia ceramics material of nano aluminium oxide toughening enhancing, with nano aluminium oxide, industrial oxidation zirconium (ZrO2), four directions
Polycrystal zirconia (3Y-TZP), lanthana (La2O3), magnesia (MgO) be raw material, parts by weight composition are as follows: nano aluminium oxide
(Al2O3) 3 parts, industrial oxidation zirconium (ZrO2) 4 parts, 90 parts of cubic polycrystal zirconia (3Y-TZP), lanthana (La2O3) 2 parts, oxidation
2 parts of magnesium (MgO).
The average grain diameter of nano aluminium oxide is 100 nanometers.
The average grain diameter of cubic polycrystal zirconia is 0.9 micron.
The average grain diameter of industrial oxidation zirconium is 0.9 micron.
The formed product method of the zirconia ceramics material of nano aluminium oxide toughening enhancing above-mentioned specifically includes following step
It is rapid:
(1) by the nano aluminium oxide, industrial oxidation zirconium (ZrO2), cubic polycrystal zirconia (3Y-TZP), lanthana
(La2O3), magnesia (MgO) weighs by aforementioned ratio and is sufficiently mixed to obtain A material;
(2) A material is passed through into wet grinding, and is processed into average grain diameter less than 0.5 micron, obtain B material;
(3) B is expected that spray-dried tower carries out drying granulation, drying tower intake air temperature is 370 DEG C, and air outlet temperature is
120 DEG C, 35 kilograms of evaporated water, obtain C material after the sufficiently drying of B material per hour;
(4) D material is made by Rollig nodulizer in C material, using the PEG-2000 aqueous solution of 5% (wt) concentration as bonding
D material base part is made through cold isostatic compaction in agent;
(5) by D material base part by dry kiln drying, drying temperature is 120 DEG C, and E material base part is obtained after drying;
(6) E material base part is fired through high temperature kiln, sintering temperature be 1375 DEG C, soaking time 2.5 hours, from
F material crude product is so obtained after cooling;
(7) F material crude product is obtained into shaped article by rough polishing, finishing polish process.
Embodiment 3
A kind of zirconia ceramics material of nano aluminium oxide toughening enhancing, in parts by weight nano aluminium oxide (Al2O3)
4 parts, industrial oxidation zirconium (ZrO2) 1 part, 92 parts of cubic polycrystal zirconia (3Y-TZP), lanthana (La2O3) 2 parts, magnesia
(MgO) 1 part.
The formed product method of the zirconia ceramics material of above-mentioned nano aluminium oxide toughening enhancing, specifically includes following step
It is rapid:
(1) by the nano aluminium oxide, industrial oxidation zirconium (ZrO2), cubic polycrystal zirconia (3Y-TZP), lanthana
(La2O3), magnesia (MgO) weighs in proportion and is sufficiently mixed to obtain A material;
(2) A material is passed through into wet grinding, and is processed into average grain diameter less than 0.5 micron, obtain B material;
(3) B is expected that spray-dried tower carries out drying granulation, drying tower intake air temperature is 370 DEG C, and air outlet temperature is
120 DEG C, 35 kilograms of evaporated water, obtain C material after the sufficiently drying of B material per hour;
(4) D material is made by Rollig nodulizer in C material, using the PEG-2000 aqueous solution of 5% (wt) concentration as bonding
Agent, or D material is made through cold isostatic compaction;
(5) D is expected that by dry kiln drying, drying temperature is 120 DEG C, obtains E material after drying;
(6) E to be expected to be fired through high temperature kiln, sintering temperature is 1350 DEG C, soaking time 1 hour, natural cooling
After obtain F material;
(7) F material is obtained into product by rough polishing, finishing polish process.
Embodiment 4
A kind of zirconia ceramics material of nano aluminium oxide toughening enhancing, with nano aluminium oxide, industrial oxidation zirconium (ZrO2)、
Cubic polycrystal zirconia (3Y-TZP), lanthana (La2O3), magnesia (MgO) be raw material, parts by weight composition are as follows: it is nano oxidized
Aluminium (Al2O3) 5 parts, industrial oxidation zirconium (ZrO2) 5 parts, 95 parts of cubic polycrystal zirconia (3Y-TZP), lanthana (La2O3) 3 parts, oxygen
3 parts of change magnesium (MgO).
The average grain diameter of nano aluminium oxide is 80 nanometers.
The average grain diameter of cubic polycrystal zirconia is 0.78 micron.
The average grain diameter of industrial oxidation zirconium is 0.85 micron.
The formed product method of the zirconia ceramics material of nano aluminium oxide toughening enhancing above-mentioned specifically includes following step
It is rapid:
(1) by the nano aluminium oxide, industrial oxidation zirconium (ZrO2), cubic polycrystal zirconia (3Y-TZP), lanthana
(La2O3), magnesia (MgO) weighs in proportion and is sufficiently mixed to obtain A material;
(2) A material is passed through into wet grinding, and is processed into average grain diameter less than 0.5 micron, obtain B material;
(3) B is expected that spray-dried tower carries out drying granulation, drying tower intake air temperature is 370 DEG C, and air outlet temperature is
120 DEG C, 35 kilograms of evaporated water, obtain C material after the sufficiently drying of B material per hour;
(4) D material is made by Rollig nodulizer in C material, using the PEG-2000 aqueous solution of 5% (wt) concentration as bonding
D material base part is made through cold isostatic compaction in agent;
(5) by D material base part by dry kiln drying, drying temperature is 120 DEG C, and E material base part is obtained after drying;
(6) E material base part is fired through high temperature kiln, sintering temperature is 1400 DEG C, soaking time 3 hours, natural
F material crude product is obtained after cooling;
(7) F material crude product is obtained into shaped article by rough polishing, finishing polish process.
Embodiment 5
A kind of zirconia ceramics material of nano aluminium oxide toughening enhancing, with nano aluminium oxide, industrial oxidation zirconium (ZrO2)、
Cubic polycrystal zirconia (3Y-TZP), lanthana (La2O3), magnesia (MgO) be raw material, parts by weight composition are as follows: it is nano oxidized
Aluminium (Al2O3) 4 parts, industrial oxidation zirconium (ZrO2) 2 parts, 92 parts of cubic polycrystal zirconia (3Y-TZP), lanthana (La2O3) 3 parts, oxygen
2 parts of change magnesium (MgO).
The average grain diameter of nano aluminium oxide is 76 nanometers.
The average grain diameter of cubic polycrystal zirconia is 0.75 micron.
The average grain diameter of industrial oxidation zirconium is 0.73 micron.
A kind of formed product method of the zirconia ceramics material of nano aluminium oxide toughening enhancing above-mentioned specifically include with
Lower step:
(1) by the nano aluminium oxide, industrial oxidation zirconium (ZrO2), cubic polycrystal zirconia (3Y-TZP), lanthana
(La2O3), magnesia (MgO) weighs by aforementioned ratio and is sufficiently mixed to obtain A material;
(2) A material is passed through into wet grinding, and is processed into average grain diameter less than 0.5 micron, obtain B material;
(3) B is expected that spray-dried tower carries out drying granulation, drying tower intake air temperature is 370 DEG C, and air outlet temperature is
120 DEG C, 35 kilograms of evaporated water, obtain C material after the sufficiently drying of B material per hour;
(4) D material is made by Rollig nodulizer in C material, using the PEG-2000 aqueous solution of 5% (wt) concentration as bonding
D material base part is made through cold isostatic compaction in agent;
(5) by D material base part by dry kiln drying, drying temperature is 120 DEG C, and E material base part is obtained after drying;
(6) E material base part is fired through high temperature kiln, sintering temperature is 1380 DEG C, soaking time 3 hours, natural
F material crude product is obtained after cooling;
(7) F material crude product is obtained into shaped article by rough polishing, finishing polish process.
The zirconia ceramics material of nano aluminium oxide toughening enhancing of the present invention and products thereof forming method, above-mentioned technical proposal
The toughness of cubic polycrystal zirconia is improved by addition nano aluminium oxide, while being added to a small amount of industrial oxidation zirconium and having saved original
Expect cost, and reduce sintering temperature using lanthana, magnesia, ensure that the aplitic texture of product, obtain product
Excellent wearability and intensity, had not only improved grinding working efficiency, but also saved cost in use;
It throws process by weighing mixing, wet grinding, mist projection granulating, molding, sintering, rough polishing, essence and is made.The present invention can drop
The sintering temperature of suboxides zircon ceramic, while the intensity and toughness of zirconia ceramics are improved, excellent wearability is made it have, it can
Abrasive media or abrasion-proof structure is made, extend the service life of product.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. the zirconia ceramics material of nano aluminium oxide toughening enhancing, it is characterised in that: it is by the raw material system of following weight parts
At: nano aluminium oxide (Al2O3) 1~5 part, industrial oxidation zirconium (ZrO2) 1~5 part, cubic polycrystal zirconia (3Y-TZP) 90~95
Part, lanthana (La2O3) 1~3 part, 1~3 part of magnesia (MgO).
2. the zirconia ceramics material of nano aluminium oxide toughening enhancing according to claim 1, it is characterised in that: described to receive
The average grain diameter of rice aluminium oxide is 50~100 nanometers.
3. the zirconia ceramics material of nano aluminium oxide toughening enhancing according to claim 1, it is characterised in that: described
The average grain diameter of cubic polycrystal zirconia is 0.7~0.9 micron.
4. the zirconia ceramics material of nano aluminium oxide toughening enhancing according to claim 1, it is characterised in that: described
The average grain diameter of industrial oxidation zirconium is 0.7~0.9 micron.
5. the zirconia ceramics material of -4 any nano aluminium oxide toughening enhancings according to claim 1, it is characterised in that:
Its formed product method are as follows:
(1) it is weighed by the material rate in claim 1 and is sufficiently mixed to obtain A material;
(2) A material is passed through into wet grinding, and is processed into average grain diameter less than 0.5 micron, obtain B material;
(3) B is expected that spray-dried tower carries out drying granulation, obtains C material after the B material sufficiently drying;
(4) D material is made by Rollig nodulizer in C material, using the PEG-2000 aqueous solution of 5% (wt) concentration as bonding agent or
D material base part is made through cold isostatic compaction;
(5) by D material base part by dry kiln drying, drying temperature is 120 DEG C, and E material base part is obtained after drying;
(6) E material base part is fired, subsequent soaking time 2-4 hours through high temperature kiln, F material is then obtained after natural cooling
Crude product;
(7) F material crude product is obtained into shaped article by rough polishing, finishing polish process.
6. the zirconia ceramics material formed product method of nano aluminium oxide toughening enhancing according to claim 5, special
Sign is: the intake air temperature of step (3) spray drying tower is 370 DEG C, and air outlet temperature is 120 DEG C, is evaporated per hour
35 kilograms of water.
7. the zirconia ceramics material formed product method of nano aluminium oxide toughening enhancing according to claim 5, special
Sign is: the sintering temperature of E material base part in the step (6): 1350~1450 DEG C, soaking time: 3 hours.
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CN114014652A (en) * | 2021-11-08 | 2022-02-08 | 长裕控股集团有限公司 | Low-temperature sintered zirconia ceramic and preparation process thereof |
CN115353382A (en) * | 2022-09-13 | 2022-11-18 | 上海利尔耐火材料有限公司 | High-strength toughened zirconia metering nozzle for continuous casting and manufacturing method thereof |
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