CN108727029A - A kind of preparation method of silicon carbide/carbon boron composite ceramic material - Google Patents
A kind of preparation method of silicon carbide/carbon boron composite ceramic material Download PDFInfo
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- C04B35/563—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on boron carbide
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Abstract
The invention discloses a kind of preparation methods of silicon carbide/carbon boron composite ceramic material, and steps are as follows for preparation method：A. the raw materials such as silicon carbide, boron carbide, sodium chloride, flyash, glass fibre, alumina powder, antimitotic agent, forming agent, gasifying agent, sodium bicarbonate, zinc chloride, bonding agent and lubricant are weighed according to parts by weight first；B. after the completion of waiting for step a, then the silicon carbide weighed and boron carbide is put into grinder and are ground, then ground good silicon carbide and boron carbide is put into 100-200 mesh leakage sieve and is screened；C. after the completion of waiting for step b, silicon carbide will have then been screened again and boron carbide powder is poured into mixer plus water mixes, then sodium chloride, flyash, glass fibre and alumina powder are added in mixer again and are stirred mixing.It is added by silicon carbide and boron carbide, allows ceramics to have the characteristics that density is low, intensity is big, high-temperature stability and chemical stability are good, reduce the manufacturing cost of ceramics.
Description
Technical field
The present invention relates to a kind of composite ceramics technical field, specially a kind of silicon carbide/carbon boron composite ceramic material
Preparation method.
Background technology
The good comprehensive performance that composite ceramic material is usually mutually learnt from other's strong points to offset one's weaknesses with different materials；Composite material has two concurrently
The characteristics of kind or two or more materials, the performance of homogenous material can be improved, such as improve intensity, increase toughness and improve dielectric properties
Deng；As the ceramic composite of high-temperature structural material, it is mainly used for aerospace, the departments such as military project；In addition, machinery, chemical industry,
The fields such as electronic technology also widely used various ceramic composites.Currently, there is also some for existing composite ceramic material
Insufficient place, such as；Existing composite ceramic material does not have that density is low, intensity is big, high-temperature stability and chemical stabilization
Property good feature, increase the manufacturing cost of ceramics, reduce the simplicity in Production of Ceramics, shorten ceramics uses the longevity
Life improves the damage probability of ceramics.
Invention content
The purpose of the present invention is to provide a kind of preparation methods of silicon carbide/carbon boron composite ceramic material, solve the back of the body
The problem of proposed in scape technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of silicon carbide/carbon boron composite ceramic material
Preparation method, steps are as follows for preparation method：
A. first by silicon carbide, boron carbide, sodium chloride, flyash, glass fibre, alumina powder, antimitotic agent, forming agent,
The raw materials such as gasifying agent, sodium bicarbonate, zinc chloride, bonding agent and lubricant are weighed according to parts by weight；
B. after the completion of waiting for step a, then the silicon carbide weighed and boron carbide is put into grinder and are ground, then will
Ground good silicon carbide and boron carbide is put into 100-200 mesh leakage sieve and is screened；
C. after the completion of waiting for step b, will then screen silicon carbide again and boron carbide powder be poured into mixer plus water into
Sodium chloride, flyash, glass fibre and alumina powder, are then added in mixer and are stirred mixing by row mixing again；
D. after the completion of waiting for step c, then antimitotic agent, forming agent, gasifying agent, sodium bicarbonate and zinc chloride be poured into step c
Mixer in, then add water and mixed, then the raw material mixed is poured into mold again and carries out cloth；
E. after the completion of waiting for step d, then the mold equipped with mixed raw material is put into the sintering furnace of vacuum environment and is burnt
It ties, the temperature in sintering process is 1500~1750 DEG C, and silicon carbide/carbon boron composite ceramics are made after 2~4 hours in heat preservation.
As a kind of preferred embodiment of the present invention, the step a includes following raw material and its weight fraction：Carbonization
Silicon 20-30g mass parts；Boron carbide is 20-40g mass parts；Sodium chloride is 10-30g mass parts；Flyash 15-35g mass
Part；Glass fibre is 15-25g mass parts；Alumina powder is 10-20g mass parts；Antimitotic agent is 35-50g mass parts；Molding
Agent is 5-10g mass parts, gasifying agent is 5-10g mass parts, sodium bicarbonate is 5-10g mass parts and zinc chloride is 5-10g
Mass parts, bonding agent are 10-20g mass parts；Lubricant is 1-5g mass parts.
As a kind of preferred embodiment of the present invention, the step a includes following raw material and its weight fraction：Carbonization
Silicon 20g mass parts；Boron carbide is 40g mass parts；Sodium chloride is 10g mass parts；Flyash 15g mass parts；Glass fibre is 15g
Mass parts；Alumina powder is 10g mass parts；Antimitotic agent is 35g mass parts；Forming agent is 5g mass parts, gasifying agent is 5g mass
Part, sodium bicarbonate is 5g mass parts and zinc chloride is 5g mass parts, bonding agent is 10g mass parts；Lubricant is 1g mass parts.
As a kind of preferred embodiment of the present invention, the raw material is weighed using high-precision electronic scale,
It to carry out calibrating electronic scale before weighing using electronic scale, the registration of electronic scale is allowed to be in zero position.
As a kind of preferred embodiment of the present invention, the mixer is using stirring, heating integrated machine, when the stirring
Stirring rod use double helix stirring rod, the heater when heating uses high frequency induction heater, the mixer stirring
When motor rotating speed be 1500r/min, the internal temperature of the mixer when heated is 70 DEG C, and time of heating is 10min.
As a kind of preferred embodiment of the present invention, it is noted that former when the mixed raw material is poured into mold progress cloth
The distribution consistency degree of material needs to carry out cloth in layer, needs to be suppressed using pressing plate when per one layered material of cloth.
As a kind of preferred embodiment of the present invention, the antimitotic agent is made of high-performance expansion antimitotic agent.
Compared with prior art, beneficial effects of the present invention are as follows：
A kind of preparation method of silicon carbide/carbon boron composite ceramic material of the present invention, is added by silicon carbide and boron carbide,
It allows ceramics to have the characteristics that density is low, intensity is big, high-temperature stability and chemical stability are good, reduces being manufactured into for ceramics
This, improves the simplicity in Production of Ceramics, extends the service life of ceramics, reduces the damage probability of ceramics.
Specific implementation mode
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, with reference to
Specific implementation mode, the present invention is further explained.
The present invention provides a kind of technical solution：A kind of preparation method of silicon carbide/carbon boron composite ceramic material, preparation side
Steps are as follows for method：
A. first by silicon carbide, boron carbide, sodium chloride, flyash, glass fibre, alumina powder, antimitotic agent, forming agent,
The raw materials such as gasifying agent, sodium bicarbonate, zinc chloride, bonding agent and lubricant are weighed according to parts by weight；
B. after the completion of waiting for step a, then the silicon carbide weighed and boron carbide is put into grinder and are ground, then will
Ground good silicon carbide and boron carbide is put into 100-200 mesh leakage sieve and is screened；
C. after the completion of waiting for step b, will then screen silicon carbide again and boron carbide powder be poured into mixer plus water into
Sodium chloride, flyash, glass fibre and alumina powder, are then added in mixer and are stirred mixing by row mixing again；
D. after the completion of waiting for step c, then antimitotic agent, forming agent, gasifying agent, sodium bicarbonate and zinc chloride be poured into step c
Mixer in, then add water and mixed, then the raw material mixed is poured into mold again and carries out cloth；
E. after the completion of waiting for step d, then the mold equipped with mixed raw material is put into the sintering furnace of vacuum environment and is burnt
It ties, the temperature in sintering process is 1500~1750 DEG C, and silicon carbide/carbon boron composite ceramics are made after 2~4 hours in heat preservation.
The step a includes following raw material and its weight fraction：Silicon carbide 20-30g mass parts；Boron carbide is 20-
40g mass parts；Sodium chloride is 10-30g mass parts；Flyash 15-35g mass parts；Glass fibre is 15-25g mass parts；
Alumina powder is 10-20g mass parts；Antimitotic agent is 35-50g mass parts；Forming agent is 5-10g mass parts, gasifying agent is
5-10g mass parts, sodium bicarbonate are 5-10g mass parts and zinc chloride is 5-10g mass parts, bonding agent is 10-20g mass
Part；Lubricant is 1-5g mass parts.
The step a includes following raw material and its weight fraction：Silicon carbide 20g mass parts；Boron carbide is 40g mass
Part；Sodium chloride is 10g mass parts；Flyash 15g mass parts；Glass fibre is 15g mass parts；Alumina powder is 10g mass parts；
Antimitotic agent is 35g mass parts；Forming agent is 5g mass parts, gasifying agent is 5g mass parts, sodium bicarbonate is 5g mass parts and chlorination
Zinc is 5g mass parts, bonding agent is 10g mass parts；Lubricant is 1g mass parts.
The raw material is weighed using high-precision electronic scale, to be carried out to electronics before being weighed using electronic scale
Scale is calibrated, and the registration of electronic scale is allowed to be in zero position.
Using stirring, heating integrated machine, the stirring rod when stirring uses double helix stirring rod, described for the mixer
Heater when heating uses high frequency induction heater, and the rotating speed of motor is 1500r/min when the mixer stirs, described mixed
The internal temperature of clutch when heated is 70 DEG C, and the time of heating is 10min.
The mixed raw material be poured into mold carry out cloth when it is noted that raw material distribution consistency degree, need in layer into
Row cloth needs to be suppressed using pressing plate when per one layered material of cloth.
The antimitotic agent is made of high-performance expansion antimitotic agent.
Embodiment one
A kind of silicon carbide/carbon boron composite ceramic material includes following raw material and its weight fraction：Silicon carbide 20-
30g mass parts；Boron carbide is 20-40g mass parts；Sodium chloride is 10-30g mass parts；Flyash 15-35g mass parts；Glass
Glass fiber is 15-25g mass parts；Alumina powder is 10-20g mass parts；Antimitotic agent is 35-50g mass parts；Forming agent is
5-10g mass parts, gasifying agent are 5-10g mass parts, sodium bicarbonate is 5-10g mass parts and zinc chloride is 5-10g mass
Part, bonding agent are 10-20g mass parts；Lubricant is 1-5g mass parts.
Steps are as follows for preparation method：
A. first by silicon carbide, boron carbide, sodium chloride, flyash, glass fibre, alumina powder, antimitotic agent, forming agent,
The raw materials such as gasifying agent, sodium bicarbonate, zinc chloride, bonding agent and lubricant are weighed according to parts by weight；
B. after the completion of waiting for step a, then the silicon carbide weighed and boron carbide is put into grinder and are ground, then will
Ground good silicon carbide and boron carbide is put into 100-200 mesh leakage sieve and is screened；
C. after the completion of waiting for step b, will then screen silicon carbide again and boron carbide powder be poured into mixer plus water into
Sodium chloride, flyash, glass fibre and alumina powder, are then added in mixer and are stirred mixing by row mixing again；
D. after the completion of waiting for step c, then antimitotic agent, forming agent, gasifying agent, sodium bicarbonate and zinc chloride be poured into step c
Mixer in, then add water and mixed, then the raw material mixed is poured into mold again and carries out cloth；
E. after the completion of waiting for step d, then the mold equipped with mixed raw material is put into the sintering furnace of vacuum environment and is burnt
It ties, the temperature in sintering process is 1500~1750 DEG C, and silicon carbide/carbon boron composite ceramics are made after 2~4 hours in heat preservation.
Traditional ceramics material data parameter list 1 is as follows：
Ceramic material data parameters table 2 of the present invention is as follows：
It to sum up states, is obtained with reference to the data comparison of Tables 1 and 2, is added by silicon carbide and boron carbide, allow ceramics to have close
The feature that low, intensity is big, high-temperature stability and chemical stability are good is spent, the manufacturing cost of ceramics is reduced, improves ceramics
Simplicity in production extends the service life of ceramics, reduces the damage probability of ceramics.
The foregoing describe the basic principles, main features and the advantages of the invention, for those skilled in the art
For, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from the spiritual of the present invention or substantially special
In the case of sign, the present invention can be realized in other specific forms.It therefore, in all respects, should all be by embodiment
Regard exemplary as, and is non-limiting, the scope of the invention being indicated by the appended claims rather than by the foregoing description,
It is intended that all changes that come within the meaning and range of equivalency of the claims are included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (7)
1. a kind of preparation method of silicon carbide/carbon boron composite ceramic material, it is characterised in that：Steps are as follows for preparation method：
A. first by silicon carbide, boron carbide, sodium chloride, flyash, glass fibre, alumina powder, antimitotic agent, forming agent, gasification
The raw materials such as agent, sodium bicarbonate, zinc chloride, bonding agent and lubricant are weighed according to parts by weight；
B. after the completion of waiting for step a, then the silicon carbide weighed and boron carbide is put into grinder and are ground, then will grinding
Good good silicon carbide and boron carbide is put into 100-200 mesh leakage sieve and is screened；
C. after the completion of waiting for step b, silicon carbide will have then been screened again and boron carbide powder is poured into mixer plus water mixes
It closes, then sodium chloride, flyash, glass fibre and alumina powder is added in mixer again and are stirred mixing；
D. after the completion of waiting for step c, then antimitotic agent, forming agent, gasifying agent, sodium bicarbonate and zinc chloride be poured into the mixed of step c
It in clutch, then adds water and is mixed, then the raw material mixed is poured into mold again and carries out cloth；
E. after the completion of waiting for step d, then the mold equipped with mixed raw material is put into the sintering furnace of vacuum environment and is sintered, burnt
Temperature during knot is 1500~1750 DEG C, and silicon carbide/carbon boron composite ceramics are made after 2~4 hours in heat preservation.
2. a kind of preparation method of silicon carbide/carbon boron composite ceramic material according to claim 1, it is characterised in that：
The step a includes following raw material and its weight fraction：Silicon carbide 20-30g mass parts；Boron carbide is 20-40g mass
Part；Sodium chloride is 10-30g mass parts；Flyash 15-35g mass parts；Glass fibre is 15-25g mass parts；Alumina powder
For 10-20g mass parts；Antimitotic agent is 35-50g mass parts；Forming agent is 5-10g mass parts, gasifying agent is 5-10g mass
Part, sodium bicarbonate is 5-10g mass parts and zinc chloride is 5-10g mass parts, bonding agent is 10-20g mass parts；Lubricant
For 1-5g mass parts.
3. a kind of preparation method of silicon carbide/carbon boron composite ceramic material according to claim 2, it is characterised in that：
The step a includes following raw material and its weight fraction：Silicon carbide 20g mass parts；Boron carbide is 40g mass parts；Sodium chloride
For 10g mass parts；Flyash 15g mass parts；Glass fibre is 15g mass parts；Alumina powder is 10g mass parts；Antimitotic agent is
35g mass parts；Forming agent is 5g mass parts, gasifying agent is 5g mass parts, sodium bicarbonate is 5g mass parts and zinc chloride is 5g matter
Measure part, bonding agent is 10g mass parts；Lubricant is 1g mass parts.
4. a kind of preparation method of silicon carbide/carbon boron composite ceramic material according to claim 1, it is characterised in that：
The raw material is weighed using high-precision electronic scale, to carry out carrying out school to electronic scale before weighing using electronic scale
Standard allows the registration of electronic scale to be in zero position.
5. a kind of preparation method of silicon carbide/carbon boron composite ceramic material according to claim 1, it is characterised in that：
Using stirring, heating integrated machine, the stirring rod when stirring uses double helix stirring rod for the mixer, when the heating
Heater uses high frequency induction heater, and the rotating speed of motor is 1500r/min when the mixer stirs, and the mixer is adding
Internal temperature when hot is 70 DEG C, and the time of heating is 10min.
6. a kind of preparation method of silicon carbide/carbon boron composite ceramic material according to claim 1, it is characterised in that：
The mixed raw material be poured into mold carry out cloth when it is noted that raw material distribution consistency degree, need to carry out cloth in layer,
It needs to be suppressed using pressing plate when per one layered material of cloth.
7. a kind of preparation method of silicon carbide/carbon boron composite ceramic material according to claim 1, it is characterised in that：
The antimitotic agent is made of high-performance expansion antimitotic agent.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113024256A (en) * | 2021-03-19 | 2021-06-25 | 哈尔滨科友半导体产业装备与技术研究院有限公司 | Production method for preparing boron carbide-silicon carbide composite ceramic by using silicon carbide crystal grinding waste liquid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113024256A (en) * | 2021-03-19 | 2021-06-25 | 哈尔滨科友半导体产业装备与技术研究院有限公司 | Production method for preparing boron carbide-silicon carbide composite ceramic by using silicon carbide crystal grinding waste liquid |
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Application publication date: 20181102 |