CN100575304C - A kind of intermetallic Ni-Al compound/Zirconium oxide ceramic composite material and preparation method thereof - Google Patents
A kind of intermetallic Ni-Al compound/Zirconium oxide ceramic composite material and preparation method thereof Download PDFInfo
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- CN100575304C CN100575304C CN200710014673A CN200710014673A CN100575304C CN 100575304 C CN100575304 C CN 100575304C CN 200710014673 A CN200710014673 A CN 200710014673A CN 200710014673 A CN200710014673 A CN 200710014673A CN 100575304 C CN100575304 C CN 100575304C
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Abstract
The invention belongs to the stupalith field, relate to intermetallic Ni-Al compound/Zirconium oxide ceramic composite material of high strength, high tenacity and preparation method thereof.The mass percent of this each integral part of matrix material (wt%) is: Ni-Al intermetallic compound 15-45%, ZrO
285-55%.The preparation method is at first with nickel powder and aluminium powder mixing and ball milling, and the formation principal crystalline phase is Ni
3The mixture of Al and NiAl adds the zirconium white mixing and ball milling again, makes powder pass through 200 mesh sieves, makes mixed powder; Make protection gas in a vacuum or with nitrogen, hot pressed sintering, sintering range is: 1300-1500 ℃, pressure is 25-40MPa.Sintering time 1 hour, heat-insulation pressure keeping 20-30 minute.This ceramic composite improves the over-all properties of zirconia ceramics, and hardness can improve 30%, and bending strength can improve 50%.
Description
Technical field:
The present invention relates to a kind of matrix material, relating in particular to a kind of is matrix with the zirconia ceramics, and intermetallic Ni-Al compound is matrix material that strengthens body and preparation method thereof, belongs to the materialogy field.
Background technology:
ZrO
2In oxide ceramics, have higher moral room temperature strength and toughness, be described as " ceramic steel ".Yet, zirconia ceramics and matrix material thereof have two shortcomings, the one, the timeliness effect meeting under moisture and middle low temperature environment causes mechanical property to descend gradually, and the 2nd, thus the transformation toughening effect weakens and even disappears and intensity and toughness are improved with temperature and sharply descends under the high temperature.The tetragonal zircite of stabilized with yttrium oxide (Y-TZP) has the mechanical property of a series of excellences such as high strength, high-fracture toughness, wear resistance be good, is regarded as the outstanding person in the ceramic structure material.But Y-TZP can cause its mechanical property significantly to descend when 100～400 ℃ of warm area life-time service, on the surface with microcosmic and macroscopic tiny crack, low temperature aging phenomenon among Here it is the so-called Y-TZP.This defective has had a strong impact on the practical application of Y-TZP as structural timber.Many for this reason investigators attempt to solve moulding and application problem mutually by adding second.Being added in of intermetallic compound phase improves ZrO to a certain extent
2Even so the over-all properties of pottery, is used in some severe condition and to be still existing material and to form and can't satisfy.The patent No. is that to disclose a kind of main component be Fe to the Chinese patent " intermetallic Fe-Al compound/zirconia ceramic matrix material and preparation method thereof " of 1398819A
3Al, FeAl, ZrO
2Ceramic matric composite, bending strength and fracture toughness property are improved, but the amplitude that improves is less.
Summary of the invention:
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, intermetallic Ni-Al compound/Zirconium oxide ceramic composite material of a kind of high strength, high tenacity and preparation method thereof is provided.
The present invention realizes in the following manner:
Intermetallic Ni-Al compound/Zirconium oxide ceramic composite material is made up of Ni-Al intermetallic compound and zirconium white, and the mass percent of each integral part (wt%) is: Ni-Al intermetallic compound 15-45%, ZrO
285-55%.
Above-mentioned intermetallic Ni-Al compound/Zirconium oxide ceramic composite material is characterized in that each constituent atoms per-cent is in the Ni-Al intermetallic compound: nickel 65-84%, aluminium 35-16%.
The preparation method of above-mentioned intermetallic Ni-Al compound/Zirconium oxide ceramic composite material, its feature may further comprise the steps:
1) nickel powder and aluminium powder are pressed atomic percent nickel 65-84%, aluminium 35-16% batching, ball milling 40-50 hour, carry out mechanical alloying, the formation principal crystalline phase is Ni
3The mixture of Al and NiAl;
2) be Ni with principal crystalline phase
3The mixture of Al and NiAl and ZrO
2Fine powder is pressed Ni-Al intermetallic compound 15-45%, ZrO
2After the 85-55% batching, mechanical ball milling, the powder behind the ball milling makes mixed powder by 200 mesh sieves;
3) powder body material is packed in the graphite jig, make protection gas in a vacuum or with nitrogen, hot pressed sintering, sintering range is: 1300-1500 ℃, pressure is 25-40MPa.Sintering time 1 hour, heat-insulation pressure keeping 20-30 minute.
The another kind of preparation method of above-mentioned intermetallic Ni-Al compound/Zirconium oxide ceramic composite material, its feature may further comprise the steps:
1) metal nickel powder, aluminium powder are pressed atomic percent nickel nickel 65-84%, aluminium 35-16% batching, then with ZrO
2Powder is pressed Ni-Al intermetallic compound 15-45%, ZrO
2The 85-55% accurate feed proportioning, mechanical ball milling 40-50 hour, the powder behind the ball milling made mixed powder by 200 mesh sieves;
2) powder is packed in the graphite jig, make protection gas with vacuum or nitrogen, hot pressed sintering, firing temperature: 1300～1500 ℃, pressure is 25～40MPa.
Utilize the present invention to prepare intermetallic Ni-Al compound/Zirconium oxide ceramic composite material, can be optimized selection to wild phase and preparation method, improve the over-all properties of zirconia ceramics, hardness can improve 30%, and bending strength can improve 50%.
Embodiment:
Embodiment 1:
At first, add ZrO then with 8.55 kilograms of 6.45 kilograms of nickel powders, aluminium powder ball milling 50 hours in ball mill
285 kilograms in powder, 60 commentaries on classics/hour mechanically mixing 2 hours are screened with 200 mesh sieves after vacuum-drying, 1400 ℃ temperature, hot pressed sintering under the 30MPa; It is 70 (HRC) that obtained matrix material gets hardness, and bending strength is 880MPa.
Embodiment 2:
With 17.1 kilograms of 12.9 kilograms of nickel powders, aluminium powder ball milling 40 hours in ball mill, add ZrO then
270 kilograms in powder, 60 commentaries on classics/hour mechanically mixing 4 hours are screened with 200 mesh sieves after vacuum-drying.1500 ℃ temperature, hot pressed sintering under the 30MPa; It is 75 (HRC) that obtained matrix material gets hardness, and bending strength is 900MPa.
Embodiment 3:
With 6.45 kilograms of nickel powders, 8.55 kilograms of aluminium powders and ZrO
285 kilograms in powder added in the ball mill ball milling 50 hours simultaneously, after vacuum-drying with the screening of 200 mesh sieves, hot pressed sintering under 1450 ℃ temperature 30MPa.It is 80 (HRC) that obtained matrix material gets hardness, and bending strength is 950MPa.
Claims (3)
1. intermetallic Ni-Al compound/Zirconium oxide ceramic composite material, it is characterized in that: be made up of Ni-Al intermetallic compound and zirconium white, the mass percent of each integral part (wt%) is: Ni-Al intermetallic compound 15-45%, ZrO
285-55%.
2. a kind of intermetallic Ni-Al compound/Zirconium oxide ceramic composite material as claimed in claim 1 is characterized in that, each constituent atoms per-cent is in the Ni-Al intermetallic compound: nickel 65-84%, aluminium 35-16%.
3. claim 1 or 2 described a kind of intermetallic Ni-Al compound/Zirconium oxide ceramic composite material preparation methods, its step is as follows:
1) nickel powder and aluminium powder are pressed atomic percent nickel 65-84%, aluminium 35-16% batching, ball milling 40-50 hour, carry out mechanical alloying, the formation principal crystalline phase is Ni
3The mixture of Al and NiAl;
2) be Ni with principal crystalline phase
3The mixture of Al and NiAl and ZrO
2Fine powder is pressed Ni-Al intermetallic compound 15-45wt%, ZrO
2After the 85-55wt% batching, mechanical ball milling, the powder behind the ball milling makes mixed powder by 200 mesh sieves;
3) powder body material is packed in the graphite jig, make protection gas in a vacuum or with nitrogen, hot pressed sintering, sintering range is: 1300-1500 ℃, pressure is 25-40Mpa, sintering time 1 hour, heat-insulation pressure keeping 20-30 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710014673A CN100575304C (en) | 2007-05-25 | 2007-05-25 | A kind of intermetallic Ni-Al compound/Zirconium oxide ceramic composite material and preparation method thereof |
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| CN200710014673A CN100575304C (en) | 2007-05-25 | 2007-05-25 | A kind of intermetallic Ni-Al compound/Zirconium oxide ceramic composite material and preparation method thereof |
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| CN101054294A CN101054294A (en) | 2007-10-17 |
| CN100575304C true CN100575304C (en) | 2009-12-30 |
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| CN200710014673A Expired - Fee Related CN100575304C (en) | 2007-05-25 | 2007-05-25 | A kind of intermetallic Ni-Al compound/Zirconium oxide ceramic composite material and preparation method thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101565306B (en) * | 2009-05-21 | 2011-12-14 | 济南大学 | Zirconia ceramic matrix composite and preparation method thereof |
| CN102701736B (en) * | 2012-06-21 | 2014-01-08 | 上海海事大学 | Corrosion-resistant ceramic matrix composite in TiAlZr/ZrO2 deep sea hydrothermal fluid area and preparation method thereof |
| CN103144764B (en) * | 2013-03-01 | 2015-12-23 | 溧阳市科技开发中心 | A kind of Wing panel with sandwich structure |
| CN108751945A (en) * | 2018-06-12 | 2018-11-06 | 佛山市华强协兴陶瓷有限公司 | A kind of ceramic material and preparation method thereof containing eutectic structure |
| CN112979323B (en) * | 2021-02-07 | 2023-05-05 | 湖南恒基粉末科技有限责任公司 | Non-spherical nickel powder for toughening zirconia and preparation method and application thereof |
| CN113277846B (en) * | 2021-05-27 | 2022-05-27 | 深圳市精而美精密陶瓷科技有限公司 | Alumina in-situ composite zirconia ceramic powder, ceramic preparation method and application |
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Granted publication date: 20091230 Termination date: 20100525 |