CN104402485A - High-strength silicon carbide crystal whisker reinforcing ceramic and preparation method thereof - Google Patents
High-strength silicon carbide crystal whisker reinforcing ceramic and preparation method thereof Download PDFInfo
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- CN104402485A CN104402485A CN201410674730.XA CN201410674730A CN104402485A CN 104402485 A CN104402485 A CN 104402485A CN 201410674730 A CN201410674730 A CN 201410674730A CN 104402485 A CN104402485 A CN 104402485A
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Abstract
The invention discloses a high-strength silicon carbide crystal whisker reinforcing ceramic material which comprises the following raw materials in parts by weight: 9-12 parts of calcite, 4-5 parts of magnesium oxide, 7-9 parts of quartz, 65-70 parts of zirconium oxide, 18-25 parts of silicon nitride, 5-7 parts of nano-zinc oxide, 20-30 parts of silicon carbide crystal whisker, 4-6 parts of lithium chinastone 1-2 parts of sodium carbonate, 0.6-0.9 part of polyvinylpyrrolidone, 1-1.5 parts of polyacrylic acid, 1.2-1.6 parts of polyethylene glycol and 4-5 parts of an antiwear aid. The silicon carbide crystal whisker and the nano-zinc oxide are added to ceramic, so that the ceramic has higher hardness, better tenacity, conductivity, antiwear performance, and high temperature resistance; when the ceramic is used for manufacturing a cutter, the cutter is excellent in heat resistance and long in service life and can smoothly cut a workpiece; with adoption of the antiwear aid, the antiwear performance and the heat resistance of the ceramic can be improved.
Description
Technical field
The present invention relates to stupalith field, particularly relate to a kind of high strength carbonizing whisker reinforced ceramic and preparation method thereof.
Technical background
Along with the development of new technology revolution, require the development improving constantly machining productivity and reduce production cost, particularly numerically-controlled machine, require the new-type cutter that exploitation is higher than inserted tool cutting speed, more wear-resisting.A few days ago various high strength, high rigidity, corrosion-resistant, wear-resisting and resistant to elevated temperatures be difficult to cut novel material increasing.Estimate according to document, this kind of material has accounted for processes more than 50% of sum in the world, inserted tool to the difficult processing of wherein many novel materials with competent.On the other hand, Wimet output reaches 20000-25000t in the world now.The metal that annual consumption is a large amount of, as W, Co, Ta and Nb etc.The Mineral resources of these metals reduce just day by day, price increase, press spending rate a few days ago, have more than is needed decades. and some resource will exhaust.Sintex is exactly grow up in this context.
Current sintex is the most extensive with ceramic applications such as zirconia ceramics, aluminum oxide, aluminium nitride, there is high rigidity, high-density, high temperature resistant, the features such as diamagneticization, anti-oxidant, erosion resistance is strong, chemical stability is good, high-wearing feature is good, but these ceramic costs are high, also need the material that research is new further, reduce costs, also will improve the performances such as ceramics toughness, thermal diffusivity, heat-shock resistance, resistance to abrasion, to adapt to the technical requirements of development.
Summary of the invention
The object of the present invention is to provide a kind of high strength carbonizing whisker reinforced ceramic and preparation method thereof, this pottery has high hardness, better toughness and conductivity, wear-resistant, resistance to elevated temperatures, this pottery is for making cutting tool, good heat resistance, cutting workpiece is smooth, and cutter life is long.
Technical scheme of the present invention is as follows:
A kind of high strength carbonizing whisker reinforced ceramic, is characterized in that being made up of the raw material of following weight part: calcite 9-12, magnesium oxide 4-5, quartzy 7-9, zirconium white 65-70, silicon nitride 18-25, nano zine oxide 5-7, silicon carbide whisker 20-30, lithium porcelain stone 4
-6, sodium carbonate 1-2, polyvinylpyrrolidone 0.6-0.9, polyacrylic acid 1-1.5, polyoxyethylene glycol 1.2-1.6, wear-resistant auxiliary agent 4-5;
Described wear-resistant auxiliary agent is made up of the raw material of following weight part: magnesium borate crystal whisker 1.3-1.5, boric acid ester coupler 0.2-0.4, butter of antimony 0.3-0.5, urea 0.4-0.5, aluminium borate whisker 0.8-1.2, nano micro crystal cellulose 0.2-0.4, stannic oxide 0.2-0.3, nano-graphite 0.4-0.8,1-2% hydrochloric acid soln is appropriate, water is appropriate.
Wear-resistant auxiliary agent preparation method is: add in the water of 8-10 weight part by butter of antimony, urea, nano micro crystal cellulose, stannic oxide, magnetic agitation 20-25 minute, add magnesium borate crystal whisker, aluminium borate whisker, continuation stir 2-3 hour, add boric acid ester coupler again, be heated to 70-80 DEG C, stirring reaction 20-30 minute, then add nano-graphite, stir 20-30 minute, 120
-be stirred to drying in 130 DEG C of oil baths, send into calcining furnace, in nitrogen atmosphere, calcine 50-60 minute at 700-800 DEG C, the 1-2% hydrochloric acid soln adding 2-3 times of weight part washs 2-3 time, is washed to neutrality, dries, and pulverizes, and crosses 40 mesh sieves, to obtain final product.
Described nano zine oxide is commercially available prod, and median size is 50-100nm.
The preparation method of described high strength carbonizing whisker reinforced ceramic, comprises the following steps:
(1) by ball milling after lithium porcelain stone, calcite mixing, cross 250 mesh sieves, add the water of 4-5 times of weight part, add polyvinylpyrrolidone after stirring, be heated to 70-80 DEG C, stir 10-15 minute, add nano zine oxide, magnesium oxide, sodium carbonate again, continue to stir 30-40 minute, spraying dry, obtain particle, then send in calcining furnace, in nitrogen atmosphere, 40-50 minute is calcined at 700-800 DEG C, pulverize, cross 200 mesh sieves, obtain particle;
(2) by quartz, zirconium white, silicon nitride mixing, add the ethanol of 0.8-1 times of weight part, be milled to below 200 orders, dry, obtain particle;
(3) particle first two steps obtained mixes with other remaining components, get the deionized water of 3-4 times of weight part of mixing material, add polyacrylic acid, polyoxyethylene glycol, stir, add mixing material, ball milling 1-2 hour, ultrasonic disperse 13-17 minute, dry at 110-120 DEG C, cross 40 mesh sieves, obtain particle;
(4) particle (3) step obtained is in nitrogen atmosphere, and hot pressing at 1610-1670 DEG C, hot pressing pressure is 25-30MPa, and hot pressing time is 40-50 minute, and naturally cooling, to obtain final product.
Beneficial effect of the present invention:
Pottery of the present invention with the addition of silicon carbide whisker, nano zine oxide, makes pottery have high hardness, better toughness and conductivity, wear-resistant, resistance to elevated temperatures, this pottery for making cutting tool, good heat resistance, cutting workpiece is smooth, and cutter life is long; The wear-resistant auxiliary agent of the application of the invention, can increase wear resistance and the thermotolerance of pottery.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.Should understand these embodiments to be only not used in for illustration of the present invention and to limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims and limited.
A kind of high strength carbonizing whisker reinforced ceramic, is made up of the raw material of following weight part (kilogram): calcite 11, magnesium oxide 4.5, quartz 8, zirconium white 68, silicon nitride 22, nano zine oxide 6, silicon carbide whisker 25, lithium porcelain stone 5, sodium carbonate 1.5, polyvinylpyrrolidone 0.8, polyacrylic acid 1.3, polyoxyethylene glycol 1.4, wear-resistant auxiliary agent 4.5;
Described wear-resistant auxiliary agent is made up of the raw material of following weight part (kilogram): magnesium borate crystal whisker 1.4, boric acid ester coupler 0.3, butter of antimony 0.4, urea 0.4, aluminium borate whisker 1, nano micro crystal cellulose 0.3, stannic oxide 0.3, nano-graphite 0.6,1.5% hydrochloric acid soln is appropriate, water is appropriate, preparation method is: by butter of antimony, urea, nano micro crystal cellulose, stannic oxide adds in the water of 9 weight parts, magnetic agitation 23 minutes, add magnesium borate crystal whisker, aluminium borate whisker, continue stirring 2.5 hours, add boric acid ester coupler again, be heated to 75 DEG C, stirring reaction 25 minutes, add nano-graphite again, stir 25 minutes, drying is stirred in 125 DEG C of oil baths, send into calcining furnace, in nitrogen atmosphere, calcine 55 minutes at 750 DEG C, 1.5% hydrochloric acid soln adding 2.5 times of weight parts washs 2.5 times, be washed to neutrality, dry, pulverize, cross 40 mesh sieves, obtain.
The preparation method of described high strength carbonizing whisker reinforced ceramic, comprises the following steps:
(1) by ball milling after lithium porcelain stone, calcite mixing, cross 250 mesh sieves, add the water of 4.5 times of weight parts, add polyvinylpyrrolidone after stirring, be heated to 75 DEG C, stir 13 minutes, add nano zine oxide, magnesium oxide, sodium carbonate again, continue stirring 35 minutes, spraying dry, obtain particle, then send in calcining furnace, in nitrogen atmosphere, calcine 45 minutes at 750 DEG C, pulverize, cross 200 mesh sieves, obtain particle;
(2) by quartz, zirconium white, silicon nitride mixing, add the ethanol of 0.9 times of weight part, be milled to below 200 orders, dry, obtain particle;
(3) particle first two steps obtained mixes with other remaining components, get the deionized water of 3.5 times of weight parts of mixing material, add polyacrylic acid, polyoxyethylene glycol, stir, add mixing material, ball milling 1.5 hours, ultrasonic disperse 15 minutes, dry at 115 DEG C, cross 40 mesh sieves, obtain particle;
(4) particle (3) step obtained is in nitrogen atmosphere, and hot pressing at 1650 DEG C, hot pressing pressure is 27MPa, and hot pressing time is 45 minutes, and naturally cooling, to obtain final product.
The Vickers' hardness of this embodiment pottery is 101GPa, and bending strength is 1238MPa, and fracture toughness property is 15MPam
1/2.
Claims (2)
1. a high strength carbonizing whisker reinforced ceramic, it is characterized in that, be made up of the raw material of following weight part: calcite 9-12, magnesium oxide 4-5, quartzy 7-9, zirconium white 65-70, silicon nitride 18-25, nano zine oxide 5-7, silicon carbide whisker 20-30, lithium porcelain stone 4-6, sodium carbonate 1-2, polyvinylpyrrolidone 0.6-0.9, polyacrylic acid 1-1.5, polyoxyethylene glycol 1.2-1.6, wear-resistant auxiliary agent 4-5;
Described wear-resistant auxiliary agent is made up of the raw material of following weight part: magnesium borate crystal whisker 1.3-1.5, boric acid ester coupler 0.2-0.4, butter of antimony 0.3-0.5, urea 0.4-0.5, aluminium borate whisker 0.8-1.2, nano micro crystal cellulose 0.2-0.4, stannic oxide 0.2-0.3, nano-graphite 0.4-0.8,1-2% hydrochloric acid soln is appropriate, water is appropriate;
Described anti-wear agent preparation method is: by butter of antimony, urea, nano micro crystal cellulose, stannic oxide adds in the water of 8-10 weight part, magnetic agitation 20-25 minute, add magnesium borate crystal whisker, aluminium borate whisker, continue to stir 2-3 hour, add boric acid ester coupler again, be heated to 70-80 DEG C, stirring reaction 20-30 minute, add nano-graphite again, stir 20-30 minute, drying is stirred in 120-130 DEG C of oil bath, send into calcining furnace, in nitrogen atmosphere, 50-60 minute is calcined at 700-800 DEG C, the 1-2% hydrochloric acid soln adding 2-3 times of weight part washs 2-3 time, be washed to neutrality, dry, pulverize, cross 40 mesh sieves, obtain.
2. the preparation method of cutting tool silicon carbide whisker reinforced ceramic according to claim 1, is characterized in that comprising the following steps:
(1) by ball milling after lithium porcelain stone, calcite mixing, cross 250 mesh sieves, add the water of 4-5 times of weight part, add polyvinylpyrrolidone after stirring, be heated to 70-80 DEG C, stir 10-15 minute, add nano zine oxide, magnesium oxide, sodium carbonate again, continue to stir 30-40 minute, spraying dry, obtain particle, then send in calcining furnace, in nitrogen atmosphere, 40-50 minute is calcined at 700-800 DEG C, pulverize, cross 200 mesh sieves, obtain particle;
(2) by quartz, zirconium white, silicon nitride mixing, add the ethanol of 0.8-1 times of weight part, be milled to below 200 orders, dry, obtain particle;
(3) particle first two steps obtained mixes with other remaining components, get the deionized water of 3-4 times of weight part of mixing material, add polyacrylic acid, polyoxyethylene glycol, stir, add mixing material, ball milling 1-2 hour, ultrasonic disperse 13-17 minute, dry at 110-120 DEG C, cross 40 mesh sieves, obtain particle;
(4) particle (3) step obtained is in nitrogen atmosphere, and hot pressing at 1610-1670 DEG C, hot pressing pressure is 25-30MPa, and hot pressing time is 40-50 minute, and naturally cooling, to obtain final product.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105367100A (en) * | 2015-10-27 | 2016-03-02 | 合肥龙多电子科技有限公司 | Aluminum nitride-silicon carbide composite circuit board substrate material enhanced by anti-corrosive high-density nanometer titanium nitride and preparation method thereof |
| CN106542825A (en) * | 2016-10-28 | 2017-03-29 | 乐山凯亚达光电科技有限公司 | A kind of semiconductor ceramic material |
| CN106588001A (en) * | 2016-12-02 | 2017-04-26 | 郑州源冉生物技术有限公司 | High-performance ceramic material and preparation method thereof |
| CN106587934A (en) * | 2016-12-02 | 2017-04-26 | 郑州源冉生物技术有限公司 | Ceramic material with good mechanical properties and preparation method therefor |
| CN115558213A (en) * | 2022-10-24 | 2023-01-03 | 广东思泉新材料股份有限公司 | Low-dielectric high-thermal-conductivity high-strength composite film and preparation method thereof |
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| CN101269961A (en) * | 2008-05-07 | 2008-09-24 | 淄博博纳科技发展有限公司 | Antimicrobial ceramic cutting tool and its manufacturing method |
| CN102924994A (en) * | 2012-11-13 | 2013-02-13 | 汕头市东和机械有限公司 | Abrasion-resistant agents and preparation method thereof |
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2014
- 2014-11-21 CN CN201410674730.XA patent/CN104402485A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269961A (en) * | 2008-05-07 | 2008-09-24 | 淄博博纳科技发展有限公司 | Antimicrobial ceramic cutting tool and its manufacturing method |
| CN102924994A (en) * | 2012-11-13 | 2013-02-13 | 汕头市东和机械有限公司 | Abrasion-resistant agents and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105367100A (en) * | 2015-10-27 | 2016-03-02 | 合肥龙多电子科技有限公司 | Aluminum nitride-silicon carbide composite circuit board substrate material enhanced by anti-corrosive high-density nanometer titanium nitride and preparation method thereof |
| CN106542825A (en) * | 2016-10-28 | 2017-03-29 | 乐山凯亚达光电科技有限公司 | A kind of semiconductor ceramic material |
| CN106588001A (en) * | 2016-12-02 | 2017-04-26 | 郑州源冉生物技术有限公司 | High-performance ceramic material and preparation method thereof |
| CN106587934A (en) * | 2016-12-02 | 2017-04-26 | 郑州源冉生物技术有限公司 | Ceramic material with good mechanical properties and preparation method therefor |
| CN115558213A (en) * | 2022-10-24 | 2023-01-03 | 广东思泉新材料股份有限公司 | Low-dielectric high-thermal-conductivity high-strength composite film and preparation method thereof |
| CN115558213B (en) * | 2022-10-24 | 2024-05-24 | 广东思泉新材料股份有限公司 | Low-dielectric high-heat-conductivity high-strength composite film and preparation method thereof |
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Application publication date: 20150311 |