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Transcript
과학과 문명
• Introduction
-
소재의 중요성
신소재공학의 내용
소재의 발전
재료의 분류
• 첨단 세라믹 소재와 응용
- Introduction
- 제품별 종류
- 기능별 종류
INTRODUCTION
1. 재료(소재)의 중요성
◎ 인류의 역사 ≡ 재료와 문명 / 문화의 관계로 표현되어 왔다. (근대화까지)
Stone ages → Bronze ages → Iron ages
→ <현대> Sophisticated materials
◎ 성장동력산업분야 → 6T
IT, NT, BT, ET, ST, CT
첨단소재의 기반
실제 현장의 요구, 문제점
≡
소재의 어려움에 봉착
ex) 대일 무역 적자
INTRODUCTION
2. 신소재(재료)공학의 내용
Structure
Properties
Depend on
Performance
Influence
ex) Graphite 와 Diamond
3. 소재의 비약적인 발전
- 초전도체의 개발
- 초고속 인터넷 : 광케이블
- 286 → 386 → 486 → Pentium → Multi Core CPU의 비약적 발전
- Automobile industry
: 경량화
( Fe → Al → Mg 합금 )
: 외연기관
: Hybrid 차(전기자동차)의 현실화
INTRODUCTION
4. 재료의 분류
◎ Based on atomic bonds and structure
1) Metal : 자유전자에 의한 금속 결합
→ valence electron 들이 핵 (parent atom)에 묶여 있지 않고 자유롭게
이동하면서 전체를 결합시키고 있다.
- high electrical and thermal conductivity ← free valence electrons
- 불투명, 광택, 반사력 ← valence electron 이 빛을 받으면 전자기적으로
진동하면서 나타나는 현상
- 일반적으로(비교적), 무거움(밀도↑), 가공성이 높다
2) Polymer : 비금속 원소들 (주기율 오른쪽 윗부분)의 공유/배위 결합
→ 전자친화력이 높은 비금속 원소들이 공유 / 배위결합을 하면서 커다란 분자
(macromolecules)를 구성한다. 이 큰 분자체는 반복되는 단위분자 (mer)로
구성되어 있고, 이것이 반복되면서 Polymer를 이룬다.
-
가볍다 : low density
thermal & electrical insulator
반사력은 없고, 투과력이 있다 (적어도 thin film에서)
유연성, 변형이 쉽다
이것들은 모두
일반적 or 상대적
성질들이다 !
INTRODUCTION
3) Ceramic : 비금속 무기 화합물
→ 비금속 원소와 금속 원소의 화합물이다. 따라서 그 결합형태나
특징이 매우 다양하다.
ex) insulator ↔ superconductor
- 종류 : 산화물, 탄화물, 질화물 등
- 일반적 특성 : hard, brittle, high wear–resistance
high temperature performance …
◎ Based on electrical conductivity
conductivity [S / m]
104
10-9
Insulators
Semiconductors
Conductors
첨단 세라믹소재와 응용 : Automotive
첨단 세라믹소재와 응용 : Automotive Sensor
첨단 세라믹소재와 응용 : 자동차용 플러그
Spark Plug/Glow Plug
Ceramic Type Glow Plug
첨단 세라믹소재와 응용 : Semiconductor Components
IC Package (Ceramics)
Pin grid array (PGA)
Package for crystal device
and SAW filter, CSP type
Package for crystal device
and SAW filter, SMD type
Package for camera modules
첨단 세라믹소재와 응용 : Semiconductor Components
IC Package (Ceramics)
Package for MEMS
and various sensors
Side blaze package
Quad flat package
Package for flip chips
첨단 세라믹소재와 응용 : Semiconductor Components
IC Package (Ceramics)
Package for high frequency
Package for opto-devices
Custom package
Thin film wiring substrate
첨단 세라믹소재와 응용 : Semiconductor Components
IC Package (Ceramics)
Substrate for probe card
LTCC/RF module
LTCC/multilayer substrate
첨단 세라믹소재와 응용 : Electronic Components
Derivative filter
LTCC RF parts / Diplexer
antenna coupler filter
Dielectric resonator, dielectric
substrate, and dielectric structure
첨단 세라믹소재와 응용 : Electronic Components
Ultrasonic wave oscillator device
Ultrasonic wave sensor
Ultrasonic wave washing unit
첨단 세라믹소재와 응용 : Medical Products Bio Ceramics
Typical Medical Applications
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Prostheses
Surgical Instruments
Diagnostic Equipment
Consumables
Instrumentation
Blood Separation
X-Ray Equipment
Electronic Implants
Electrophoresis
Blood Flow
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Foetal Heart Monitors
Medical Imaging
Nebulisation
Catheters
Pacemakers
Cataract Removal
Ultrasonic Scalpels
DNA Testing
Heart pumps
Blood analysis
Blood flow sensors
Air in-line sensors
Bone stimulators
Bone screws
Cochlear implants
Laparoscopic surgical devices
RF ablation instruments
첨단 세라믹소재와 응용 : Medical Products Bio Ceramics
Bone filling material
Application
This product is an artificial bone used to fill, repair, and
cure the lost or empty space in a bone caused by
diseases such as a bone fractures or tumors or by the
treatment of diseases.
Material
It is made of a compound ceramic of hydroxyl apatite
and tricalcium phosphate.
Feature
Products of various structures, shapes, and sizes that suit
the space to be filled are available whenever they are
necessary because they are already packaged after being
sterilized. Made-to-order products that are manufactured
to fit the lost or empty space of the bones of individual
patients are also available.
첨단 세라믹소재와 응용 : Medical Products Bio Ceramics
Artificial femoral head
Application
This product is an artificial femur head that is used in
combination with the femur stem of an artificial hip
joint
Material
Zirconia or alumina
Feature
Because this product is finished with fine surface
roughness and with high strength and precision and
because the amount of wear of the polyethylene socket
is small, longer product life than that of the
conventional metal artificial femoral head can be
expected.
첨단 세라믹소재와 응용 : Medical Products Bio Ceramics
Bone paste
Application
This product is a bone filler in paste-form for which
the form can be changed according to the part, such
as the lost space or fracture of a bone, for which
bone transplant is necessary.
Material
It is a mixture of powders (quad-calcium phosphate
and anhydrous calcium hydrogen phosphate) and a
hardening solution (dextran sulfate sodium solution).
Feature
When used, the powders and hardening solution are
mixed to create a paste-form mixture that can fill in
the empty space of a bone that is to be repaired. The
mixture becomes hydroxyl apatite after hardening
첨단 세라믹소재와 응용 : Medical Products Bio Ceramics
Oxygen concentrator for
medical use “Sansomate-3E”
Oxygen concentrator for
medical use “Sansomate-5L”
첨단 세라믹소재와 응용 : Aerospace
Typical Aerospace Applications
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Instrumentation
Control Systems
Engine Build
Engine Refurbishment
Engine Monitoring
Missile Guidance Systems
Satellite Positioning Equipment
Fuel Level Sensors
Gyroscopes
Vibration Sensors
DLC Jet Engine Components
Micro-electronic packages used in sensor
devices
첨단 세라믹소재와 응용 : Security & Defence
Typical Applications
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Dipping Sonar
Sonar Buoys
Submarine & Surface Sonar
Torpedo Guidance
Chemical Agent Monitors
Image Intensifiers (Night Vision)
Laser Range Finders
Infra-Red Detectors
Body Armour
Vehicle Armour
Proximity Switches
Scanners
Electronic Counter Measures
Decoys
Towed Arrays
Airport Security Systems
Gyroscopes
Finger print scanners / sensors
첨단 세라믹소재와 응용 : Power Generation & Distribution
Typical Applications
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Vacuum Switch Tubes
Semiconductor Switch Housings
Stand Off Insulators
Cable Insulators
Fuses
High Pressure Cable Interconnects
Radiation Detector Components
Insulating Ceramics for poly-crystaline silicon
growth
Ceramic rollers for solar panel flat glass substrate
production
Cooling passages for Gas Turbines (Turbine Blades
& Vanes ceramic Cores)
Fuel Cell Components
Vacuum Interrupters
Power Distribution
Power Supply (Insulators)
Power Transmission Lines
Gas Meters
Power Transmission
Oil Well Submersible Pumps
첨단 세라믹소재와 응용 : Solar Energy
첨단 세라믹소재와 응용 : Heat-Resistant Product
Application
Orifices and nozzles used for welding machines, such as CO2 and
TIB, and air plasma cutting machines are manufactured.
Material
Mainly alumina, and KP-84 and KP-921 that are resistant to heat
shock are often used.
Features
Because the product is resistant to thermal shock and excels in
electric insulation, it is used by the major manufacturers of
welding machines globally.
Parts for welding machine
첨단 세라믹소재와 응용 : Physical Wear-Resistant Product
Balls and rollers for bearings
Capstan
Application
This bearing spherical ball is used for machine tools, such as
spindles that rotate at high speeds and for semiconductor
manufacturing equipment that can be damaged by metal dust.
It is also used in a special environment, such as in hightemperature chemicals.
Material
EC-141 manufactured from silicon nitride with the special gaspressure sintering method.
Features
It excels in mechanical strength and rolling fatigue life.
Application
It is used in the process for wiredrawing of copper, aluminum,
and stainless steel.
Material
Mainly KP-95 and KP-990 of alumina are used, but EC-141 of
silicon nitride may be used, depending on the application.
Features
Since it is very resistant to wear in comparison with a metal
capstan, its contact surface with wire rods is difficult to wear
down, and, therefore, its precision can be maintained for a long
time.
첨단 세라믹소재와 응용 : Physical Wear-Resistant Product
Application
The mixer faucet is used for the single lever-type faucet of a
household washbasin, and the ceramic disk is used only for
performing thermo-control or turning the faucet on/off.
Material
Mainly KP-95 of alumina that excels in wear resistance is used.
Features
The product has optimal air-tightness and sliding characteristics
enabled by the press work of complicated shapes and the
control of the precision and roughness of the lapping surface.
Mixer faucet and ceramic disk
Application
This product is used for solenoid valves, air cylinders, etc.
Material
Mainly KP-95 of alumina is used.
Features
The product is often used in combination with another identical
product. It is designed so that the flatness and roughness of the
combined surfaces are finished optimally to thereby have
excellent sliding characteristics.
Air switchover valve
첨단 세라믹소재와 응용 : Physical Wear-Resistant Product
Application
This product is used to seal the liquid in the water pump rotor of
vehicles, marine vessels, etc.
Material
Mainly alumina is used. KP-95 is used for general purposes and
UHA-99 that is chemical-resistant is used for special purposes.
Features
It excels in heat-resistance, wear-resistance, and chemicalresistance. In addition, it can control the roughness of the lapping
surface with high precision.
Sealing
Application
This product is a nozzle that discharges abrasives for
sandblasting of glass, natural stone, or metal.
Material
KP-92 of alumina that is wear-resistant and a composite material
of alumina and zirconia are used.
Features
The discharge internal diameter, length, and external diameter of
the nozzle vary, depending on the use of the product.
Sandblast nozzle
첨단 세라믹소재와 응용 : Physical Wear-Resistant Product
Ceramic liner and chip
Application
The ceramic liner and chip are used to line the slip plane of places
where granules, slurry, or minerals are delivered, or of storage
facilities. The product is used in steelworks, power plants, glass
factories, etc.
Material
KP-95 of alumina that is wear-resistant is used. Zirconia and silicon
nitride are also used.
Features
Products ranging from tile-form ones, of which the sizes are 5, 10,
and 20 mm, to tubular ones for ventilation pipes are designed and
manufactured as needed.
Application
The product is used as a mixing or grinding machine in academic
to industrial purposes in pottery and chemical factories that
manufacture glass, enamel, ceramics, and pigments.
Material
It is made of KP-95 of alumina.
Features
It has high strength and shock-resistance. In addition, it excels in
wear-resistance and chemical stability.
Pot mill
첨단 세라믹소재와 응용 : Physical Wear-Resistant Product
Liner brick for ball mill
Parts for metal molds
Application
The product is used for fine grinding mills, such as ball mills,
tube mills, and vibrational mills, in order to highly maintain the
purity of materials to be ground.
Material
It is made of Corundit-W basis material of which the main
component is α-alumina.
Features
Because the amount of wear of the product is considerably
small in comparison with that of normal ceramic bricks or
natural stones, the amount of worn brick components to be
mixed in the ground material is small, and, therefore, the purity
of the ground material can be highly maintained.
Application
The product is used mainly for punching materials of lead
frame punching metal molds and ESD free jig.
Material
Other than zirconia UTZ-33, conductive zirconia (KGS-20) that
can be wire-cut is used.
Features
It has been revealed that the life of the product is three to five
times longer than that of the ultra-hard punching material.
첨단 세라믹소재와 응용 : Chemical Wear-Resistant Product
Application
This plunger pump is used for agrochemical spraying, washing
machines, and artificial dialysis.
Material
KP-990 of alumina, zirconia, etc., is used.
Features
Since chemically stable ceramics are used, corrosion of the
product is difficult and it has a long life. In addition, even when it
is used for medical purposes, the ceramics do not dissolve, which
ensures safety
Plunger pump
Application
This product is used as a regulator of fluids at chemical plants.
Material
When resistance to chemicals, such as alkalis and acids, and
resistance to corrosion are required, alumina UHA-99 is used.
When resistance to heat is required, silicon nitride EC-141 is used.
Features
Both alumina and silicon nitride are ground with high precision
and each part has high system accuracy.
Fluid control valve
첨단 세라믹소재와 응용 : Heat and Wear Resistant Product
Application
This product is a roll for manufacturing tubes and molding.
Material
Silicon nitride (EC-141)
Features
Since the sputter does not cling to the roll, high-quality products
can be manufactured.
Since the product is resistant to heat, wear, and thermal shock, its
life can be extended.
Squeeze roll
첨단 세라믹소재와 응용 : Electric Insulator
Application
This product supports all stud-type and flat-type silicon rectifiers
as an electric semiconductor package for diodes, thyristors, and
GTOs.
Material
It is blazed with a copper block via alumina HA-92, BA-903, kovar,
and 42 alloys.
Features
It has excellent resistance to thermal shock, electric insulation
properties, high mechanical strength, and air-tightness.
Vessel for silicon rectifier
Vacuum switch vessel
Application
This product is used as a vessel for the vacuum switches of
electric current breakers.
Material
The product has a structure in which alumina HA-92 of which the
edge face and external face are metalized is blazed with the
central axis (copper) and the terminal block via kovar and 42
alloys.
Features
Since it excels in electric insulation properties, air-tightness,
mechanical strength, and durability, high-temperature exhaust is
possible.
Since the product also excels in dielectric strength, it can be made
smaller than glass vessels.
첨단 세라믹소재와 응용 : Electric Insulator
Drawing terminal
Mica ceramics
Application
This product is used for equipment that must be highly reliable,
such as vacuums, electric power systems, vehicles, and LPG
tankers.
Material
he product has a structure in which alumina HA-92 of which
the edge face and external face are metalized is blazed with the
central axis (copper) and the terminal block via kovar and 42
alloys.
Features
Since it has high electric insulation properties, it can be used
under a high current and high voltage.
Application
This product is used for insulating plates, jigs for insulation, and
parts used at a high temperature that metal products cannot
substitute.
Material
It is a sintered compact of synthetic mica including fluorine.
Features
Since dry cutting is applicable, it is suitable for small-lot
production and manufacturing of special-form products. It can be
used at a high temperature of up to 1,100 degrees Celsius, and
has excellent properties: a dielectric breakdown voltage of 20
kV/mm.
첨단 세라믹소재와 응용 : Product For Semiconductor Manufacturing Equipment
Application
Chucking parts, such as silicon wafers, liquid crystal panels, etc.
Material
Alumina (KP-95, KP-990, KP-999, etc.)
Features
The finish processing of the asperity of the surface can be
ordered by the unit of micrometer, according to the processing
equipment to be used.
Products with a size of up to 12 inches can be manufactured.
Vacuum chuck plate
Application
Chucking parts, such as silicon wafers, liquid crystal panels, etc.
Material
Alumina (KP-92, etc.)
Features
The surface finish processing, internal structure, and gas flow can
be designed, according to the processing equipment to be used.
Products with a size of up to 12 inches can be manufactured.
Static chuck plate
첨단 세라믹소재와 응용 : Electric Equipment Product
Application
This product is used as the heat source of soldering irons, hotwater toilet seats, and hot-water heaters of 24-hour bathrooms.
Material
Inside the layer of alumina sheets, a high-melting point metal is
buried, and the layer and the metal are sintered together.
Features
Since the resistance wiring is inside the ceramics, this heater
excels in resistance to chemicals, wire breakage, and
deterioration with age. It is highly reliable.
Ceramic heater
첨단 세라믹소재와 응용 : Cutting tool
첨단 세라믹소재와 응용 : Cutting tool
첨단 세라믹소재와 응용 : Glass - Architecture
첨단 세라믹소재와 응용 : Glass - Automotive
첨단 세라믹소재와 응용 : Glass - Lighting
첨단 세라믹소재와 응용 : Glass – Electronics & Life science
첨단 세라믹소재와 응용 : Glass – Household
Oven
Commercial refrigerator
Glass for gas range
Kitchen
Refrigerator
Bathroom
첨단 세라믹소재와 응용 : Glass - Optics, Pharmacy, Solar, Tube…
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첨단 세라믹소재와 응용 : Cement, Concrete, Gips…..
첨단 세라믹소재와 응용 : Cement, Concrete, Gips…..