CN1528709A - TiB2 base metal-ceramic composite material and preparing method thereof - Google Patents
TiB2 base metal-ceramic composite material and preparing method thereof Download PDFInfo
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- CN1528709A CN1528709A CNA031326412A CN03132641A CN1528709A CN 1528709 A CN1528709 A CN 1528709A CN A031326412 A CNA031326412 A CN A031326412A CN 03132641 A CN03132641 A CN 03132641A CN 1528709 A CN1528709 A CN 1528709A
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Abstract
The invention is a TiB2-based metallic ceramic composite and preparing method, relating to a low density, high-temperature resistant, wearable, anticorrosive, low-distortion, high thermal shock resistant and anti-wash TiB2-based metallic ceramic composite and preparing method. It is composed of the components (wt%): TiB2 30-90wt%, Cu 10-70 and Ni 0-10wt%. The preparing method: (1) weigh and dry raw material; (2) dry mix the raw material; (3) cold press the dried mixture at 35-45MPa into preformed blanks with phase ratio density being 55-60%; (4) place the preformed blank in the reactor, Ti and B4C as igniting powder, ignite the igniting powder to excite self-spreading combustion synthesis reaction of the preformed blank; (5) after the combustion synthesis reaction, quickly apply the pressure 150-200MPa, and make one-step compact material implementation.
Description
Technical field: the present invention relates to a kind of TiB
2Based ceramic metal matrix material and manufacture method, particularly a kind of have little, high temperature resistant, wear-resistant, corrosion-resistant, the low distortion of density, high thermal-shock resistance and an anti-TiB that washes away
2Based ceramic metal matrix material and preparation method.
Background technology: because TiB
2Pottery has some unique physical and chemical performance, for example: hot hardness is high, density and resistivity is low, Young's modulus is high, heat conductivity is good, with the tackiness of metal with frictional coefficient is low, oxidation-resistance is high, chemical stability is good etc., thereby be considered to make the rising hard phase of first-generation metal pottery.Existing TiB
2The major metal of boride of being used in the based ceramic metal matrix material boning has Fe, Ni, Co, Cr, Mo or their alloy.But nearly all metal and TiB as sintering metal bonding phase
2The intensive chemical reaction all takes place and cause sintering metal to become fragile; Because self-diffusion coefficient is low, make TiB in addition
2Sinterability be subjected to very big influence, thereby TiB
2The progress of based ceramic metal is slow.At present at TiB
2In the based ceramic metal, studying more is TiB
2-Fe, TiB
2-FeMo, TiB
2Sintering metals such as-Fe-Cr-Ni, but because this class strength of materials is lower, fragility is bigger, be unsuitable under thermal shocking load, using.
Summary of the invention: be to solve the problem that prior art exists, the invention provides a kind of TiB with high strength, high conductivity, high temperature resistant and heat shock resistance
2Based ceramic metal matrix material and preparation method thereof.TiB of the present invention
2The based ceramic metal matrix material is made up of the composition of following weight percent: TiB
230～90wt%, Cu10～70wt% and Ni0～10wt%.TiB of the present invention
2The based ceramic metal matrix material is made of two components, promptly as the TiB of body material
2Pottery and as mutually metal of bonding, with pure Cu or Cu-Ni alloy as TiB
2Metal bonding phase in the based ceramic metal matrix material.Described ceramic phase matrix can also be TiC, ZrC or ZrB
2Described ceramic-metallic adiabatic temperature is 1800～2000K.The total weight percent content of described Cu and Ni is less than 70wt%.TiB of the present invention
2The preparation method of based ceramic metal matrix material carries out as follows: (1) takes by weighing raw material by following weight percent: the B of Ti20.68～62.03wt%, Cu10～70wt%, Ni0～10wt% and surplus, and raw material carried out drying; (2) raw material is done mixed; (3) colded pressing under the pressure of 35～45MPa in compound oven dry back that to make relative density be 55～60% precast billet; (4) precast billet is put into reactor, with Ti and B
4C is a priming charge, excites the self-propagating combustion building-up reactions of precast billet by the point of ignition gunpowder; (5) apply the pressure of 150～200MPa after combustion reactions finishes rapidly, a step is realized the material densification.In above-mentioned (1) step, Ti powder and B powder are prepared burden by the mol ratio of combustion synthesis reaction at 1: 2.TiB of the present invention
2The preparation method of based ceramic metal matrix material is self propagating high temperature combustion synthesis method (a SHS method), this method is the chemical reaction liberated heat that utilizes between material, make building-up reactions continue voluntarily to carry out to finish, thereby synthesize a kind of novel method of material requested in a short period of time until reaction.In the scope of the mutually shared weight ratio of above-mentioned metal bonding, along with the increase of metal bonding phase proportion, TiB
2The corresponding raising of the electric conductivity of based ceramic metal matrix material, the also corresponding raising of tensile strength and flexural strength, but the softening temperature of material reduces.Regulate metal bonding shared ratio in matrix material, can make TiB with different performance
2The based ceramic metal matrix material.Preparation method's advantage is among the present invention: it is that ceramic phase is synthetic compound integrated with material that this method prepares sintering metal, compare with traditional other methods such as powder metallurgy, it has its unique advantage: the ceramic particle original position generates, avoided adding the ceramic particle produced pollution in other method, and size of particles and distribution uniform; Temperature of reaction height, speed of response are fast, thereby size of particles is less in the material of preparation; Ceramic phase generates in metallographic phase and makes it and had better bond effect and interface combination mutually by reaction heat institute molten metal, and obdurability is better.In addition, its cost will reduce more than one times than traditional method.Just because of this, this TiB
2The based ceramic metal matrix material just has higher over-all properties.TiB provided by the present invention
2The based ceramic metal matrix material can be used for the electrical contact of rly. or high-voltage switch gear, the high temperature pressure head of Gleeble thermal analogy machine, electricity friction functional materials, integrated circuit chip, welding electrode and other electro-conductive materials etc. of high-speed railway.This invention is the technology that can bring inestimable economic benefit, because it has series of advantages such as equipment is simple, technological process is very easy, energy consumption is low, productivity is high, cost is low, thereby has great technical meaning and economy, social effect.This invention can be applied to the preparation and the manufacture field of some other boride and carbide-base ceramics matrix material.
Embodiment one: the TiB of present embodiment
2The based ceramic metal matrix material is made up of the composition of following weight percent: TiB
252wt%, Cu40wt% and Ni8wt%.Its manufacture method is: (1) puts into the oven dry 24 hours down of 90 ℃ in loft drier with starting material B powder, and Ti powder, Cu powder and Ni powder be 90 ℃ of dryings 2～4 hours in loft drier then; (2) put into stainless steel jar mill mixing 24 hours by calculating the good some gram starting material of proportioning weighing; (3) compound through 90 ℃ of oven dry in following 8 hours after, weighing 250 gram is packed in the cold stamping die, being pressed into diameter under the 40MPa pressure is 55mm, height is 35mm, relative density is 55～60% cylindric precast billet; (4) precast billet is put into reactor; (5) by Ti and the B of igniting
4The priming charge of C excites the self-propagating combustion building-up reactions of precast billet; (6) apply the high-pressure about 180MPa after combustion reactions finishes rapidly, a step is realized the material densification.
Embodiment two: with the vacuum-drying 24 hours under 90 ℃ of temperature in the water cycle loft drier of starting material Ti powder, Cu powder and B powder, press TiB at first respectively
2-40wt%Cu proportioning weighing Ti powder, Cu powder and B powder configure compound, in stainless steel jar mill, do and mixed 24 hours, the powder that mixes is put into the water cycle loft drier again under 90 ℃ of temperature, vacuum-drying 8 hours, putting into punching block 40MPa then, to be pressed into relative density be precast billet between 55%～60%.Put into self propagating high temperature synthesis reactor mould then, by the resistive heater priming mixture that ignites, excite the self-propagating combustion reaction of Ti and B, when question response has just finished product and still has been in the red heat soft state, apply a 180MPa high-pressure rapidly, and pressurize 5～20s, the reaction product taking-up is put into sand and is cooled off, after the cooling, can obtain TiB
2-40wt%Cu based composites.
Embodiment three: with the vacuum-drying 24 hours under 90 ℃ of temperature in the water cycle loft drier of starting material Ti powder, Cu powder, Ni powder and B powder, press TiB at first respectively
2-30wt%Cu-6wt%Ni weighing Ti powder, Cu powder, Ni powder and B powder configure compound, in stainless steel jar mill, do and mixed 24 hours, the powder that mixes is put into the water cycle loft drier again under 90 ℃ of temperature, vacuum-drying 8 hours, putting into then and being pressed into relative density under the punching block 40MPa is precast billet between 55%～60%.Put into self propagating high temperature synthesis reactor mould then, by the resistive heater priming mixture that ignites, excite the self-propagating combustion reaction of Ti and B, when question response has just finished product and still has been in the red heat soft state, apply a 180MPa high-pressure rapidly, and pressurize 5～20s, the reaction product taking-up is put into sand and is cooled off, after the cooling, can obtain TiB
2-30wt%Cu-6wt%Ni based composites.
Claims (5)
1, a kind of TiB
2The based ceramic metal matrix material is characterized in that it is made up of the composition of following weight percent: TiB
230～90wt%, Cu10～70wt% and Ni0～10wt%.
2, a kind of TiB according to claim 1
2The based ceramic metal matrix material is characterized in that described ceramic-metallic adiabatic temperature is 1800～2000K.
3, a kind of TiB according to claim 1
2The based ceramic metal matrix material, the total weight percent content that it is characterized in that described Cu and Ni is less than 70wt%.
4, a kind of TiB
2The preparation method of based ceramic metal matrix material, it is characterized in that it carries out as follows: (1) takes by weighing raw material by following weight percent: the B of Ti20.68～62.03wt%, Cu10～70wt%, Ni0～10wt% and surplus, and raw material carried out drying; (2) raw material is done mixed; (3) colded pressing under the pressure of 35～45MPa in compound oven dry back that to make relative density be 55～60% precast billet; (4) precast billet is put into reactor, with Ti and B
4C is a priming charge, excites the self-propagating combustion building-up reactions of precast billet by the point of ignition gunpowder; (5) apply the pressure of 150～200MPa after combustion reactions finishes rapidly, a step is realized the material densification.
5, a kind of TiB according to claim 4
2The preparation method of based ceramic metal matrix material is characterized in that in above-mentioned (1) step Ti powder and B powder are prepared burden by the mol ratio of combustion synthesis reaction at 1: 2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031326412A CN1528709A (en) | 2003-09-27 | 2003-09-27 | TiB2 base metal-ceramic composite material and preparing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031326412A CN1528709A (en) | 2003-09-27 | 2003-09-27 | TiB2 base metal-ceramic composite material and preparing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708989B (en) * | 2009-12-14 | 2012-02-15 | 哈尔滨工业大学 | Method for preparing aluminum nitride/boron nitride composite ceramic through combustion synthesis method |
| CN104694809A (en) * | 2015-03-09 | 2015-06-10 | 苏州圣谱拉新材料科技有限公司 | Composite ceramic aluminum material and preparation method thereof |
| CN108424146A (en) * | 2018-04-28 | 2018-08-21 | 东北大学 | A kind of preparation method of four tungsten borides base ceramics |
| CN112735866A (en) * | 2020-12-21 | 2021-04-30 | 哈尔滨东大高新材料股份有限公司 | Cu-VB for low-voltage electrical apparatus2-La contact material and preparation method thereof |
-
2003
- 2003-09-27 CN CNA031326412A patent/CN1528709A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708989B (en) * | 2009-12-14 | 2012-02-15 | 哈尔滨工业大学 | Method for preparing aluminum nitride/boron nitride composite ceramic through combustion synthesis method |
| CN104694809A (en) * | 2015-03-09 | 2015-06-10 | 苏州圣谱拉新材料科技有限公司 | Composite ceramic aluminum material and preparation method thereof |
| CN108424146A (en) * | 2018-04-28 | 2018-08-21 | 东北大学 | A kind of preparation method of four tungsten borides base ceramics |
| CN108424146B (en) * | 2018-04-28 | 2020-06-16 | 东北大学 | Preparation method of tungsten tetraboride-based ceramic |
| CN112735866A (en) * | 2020-12-21 | 2021-04-30 | 哈尔滨东大高新材料股份有限公司 | Cu-VB for low-voltage electrical apparatus2-La contact material and preparation method thereof |
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