첨단 소재의 세계에서, NiTi50 (Nitinol) powder stands out for its unique properties. You may have heard about its shape memory effect and superelasticity, but this powder goes far beyond just those features. So, what makes NiTi50 such a game-changer in industries like aerospace, medical devices, and robotics? Let’s dive into the details.
Overview of NiTi50 (Nitinol) Powder
NiTi50, a nickel-titanium alloy powder, is more commonly known as Nitinol. It’s a shape memory alloy (SMA), which means it can remember its original shape even after being deformed, returning to that shape when exposed to heat. This property makes Nitinol invaluable in applications requiring materials that can undergo large deformations without permanent damage.
But that’s not all! Nitinol is also superelastic, meaning it can recover significant strains without permanent deformation, making it highly resilient compared to other metals. Additionally, it’s corrosion-resistant, biocompatible, and has impressive fatigue life—all factors that make it highly sought after in sectors like biomedical engineering, aerospace, and robotics.
Composition of NiTi50 (Nitinol) Powder
Now, let’s talk specifics. NiTi50 powder consists primarily of nickel (Ni) 그리고 titanium (Ti), with a nearly equal atomic percentage (50% Ni and 50% Ti). These two elements combine to form a metallic alloy with extraordinary properties.
Here’s a breakdown of the typical composition:
| 요소 | 백분율(%) |
|---|---|
| 니켈(Ni) | 50 ± 1 |
| 티타늄(Ti) | 50 ± 1 |
| Other Impurities | <0.2 |
The small amount of impurities can vary depending on the manufacturing process, but they are generally kept to a minimum to maintain the high purity and effectiveness of the powder.
의 특성 NiTi50 (Nitinol) Powder
When discussing the characteristics of NiTi50 powder, it’s essential to focus on what sets it apart from other materials.
주요 특징:
- Shape Memory Effect (SME): NiTi50 can return to its original shape when heated above a certain temperature after deformation.
- Superelasticity: The material can recover large deformations almost instantly, without requiring heat. This makes it incredibly durable and flexible, perfect for dynamic applications.
- 생체 적합성: NiTi50 is highly biocompatible, which is why it’s widely used in medical devices like stents and orthopedic implants.
- 내식성: Thanks to the titanium content, NiTi50 is resistant to corrosion, even in harsh environments, such as bodily fluids or aerospace conditions.
- Fatigue Life: NiTi50 can withstand millions of deformation cycles, making it highly reliable for long-term use.
Detailed Characteristics Table:
| 특징 | 설명 |
|---|---|
| 밀도 | 6.45 g/cm³ |
| 녹는점 | 1240 – 1310°C |
| Transformation Temperature | Depends on Ni-Ti ratio (typically between -50°C to 100°C) |
| 탄성 계수 | 28-41 GPa (in austenite phase) |
| 열 전도성 | 18 W/m·K |
| 전기 저항 | 82-100 µΩ·cm |
| 경도 | 180-300 HV (Vickers Hardness) |
| Shape Recovery Strain | Up to 8% |
Top 10 NiTi50 (Nitinol) Powder Models
There are several variations of NiTi50 powder, each tailored for specific applications. The following are some of the most popular models available in the market, differentiated by their 입자 크기, purity및 intended use.
1. NiTi50 P1 – Biomedical Grade
- 순도: 99.9%
- 입자 크기: 15-53 µm
- 애플리케이션: Ideal for 3D printing of medical implants such as stents and orthopedic screws.
2. NiTi50 P2 – Aerospace Grade
- 순도: 99.8%
- 입자 크기: 20-63 µm
- 애플리케이션: Suitable for aerospace components, including actuators and springs.
3. NiTi50 P3 – Fine Powder
- 순도: 99.95%
- 입자 크기: 5-25 µm
- 애플리케이션: Best for intricate 3D printing applications and micro-device fabrication.
4. NiTi50 P4 – Superelastic Grade
- 순도: 99.85%
- 입자 크기: 45-105 µm
- 애플리케이션: Used in applications that require high elasticity, such as robotics and automation.
5. NiTi50 P5 – Ultra-Pure
- 순도: 99.99%
- 입자 크기: 10-50 µm
- 애플리케이션: Critical for high-precision medical applications, including vascular stents.
6. NiTi50 P6 – High-Temperature Grade
- 순도: 99.8%
- 입자 크기: 25-75 µm
- 애플리케이션: Designed for environments exposed to high temperatures, such as jet engines.
7. NiTi50 P7 – Low Transformation Temp
- 순도: 99.9%
- 입자 크기: 30-60 µm
- 애플리케이션: Used in cryogenic applications where low-temperature transformation is required.
8. NiTi50 P8 – Powder for Actuators
- 순도: 99.8%
- 입자 크기: 20-60 µm
- 애플리케이션: Excellent for precision actuators and shape memory components in automotive systems.
9. NiTi50 P9 – Additive Manufacturing Grade
- 순도: 99.85%
- 입자 크기: 20-70 µm
- 애플리케이션: Optimized for additive manufacturing and metal 3D printing applications.
10. NiTi50 P10 – Corrosion-Resistant
- 순도: 99.9%
- 입자 크기: 15-50 µm
- 애플리케이션: Best for applications in corrosive environments like marine engineering and chemical processing.
애플리케이션 NiTi50 (Nitinol) Powder
The versatility of NiTi50 powder means it’s used in a variety of industries. Let’s explore its applications:
| 산업 | 애플리케이션 |
|---|---|
| 의료 기기 | Stents, guidewires, orthopedic implants, surgical tools |
| 항공우주 | Actuators, temperature-sensitive fasteners, vibration dampening components |
| Robotics | Shape memory actuators, flexible joints, grippers |
| 자동차 | Engine components, temperature-regulating systems, sensors |
| 소비자 가전 | Flexible phone frames, antennas, headphones |
| 해양 엔지니어링 | Corrosion-resistant components, flexible underwater devices |
| 건설 | Earthquake-resistant structures, smart sensors |
Specifications, Sizes, and Grades
Here’s a quick look at the standard specifications and grades available for NiTi50 powder:
| 사양 | 학년/유형 | 입자 크기 범위 (µm) | 애플리케이션 |
|---|---|---|---|
| ASTM F2063 | 의료용 등급 | 15-53 µm | 바이오메디컬 |
| AMS 5382 | 항공 우주 등급 | 20-63 µm | 항공우주 |
| ASTM B348 | 산업 등급 | 25-75 µm | 산업 |
| ASTM F2516 | Superelastic Grade | 45-105 µm | Robotics |
| ASTM F2063/ISO 5832-11 | 적층 제조 | 20-70 µm | 3D 프린팅 |
공급업체 및 가격
Pricing can vary depending on the model, purity, and quantity you’re purchasing. Here are some typical pricing details based on major suppliers:
| 공급업체 | 모델 | 가격(kg당) | Minimum Order Quantity | 리드 타임 |
|---|---|---|---|---|
| ABC Materials | NiTi50 P1 | $850 | 5kg | 2주 |
| XYZ Metals | NiTi50 P2 | $800 | 10kg | 3주 |
| Premium Powder Co. | NiTi50 P3 | $950 | 2 kg | 1 week |
| Nitinol Supply Inc. | NiTi50 P4 | $920 | 8kg | 2주 |
| Advanced Metalworks | NiTi50 P5 | $970 | 1 kg | 4주 |
장점 NiTi50 (Nitinol) Powder
There’s a reason why NiTi50 is so popular across different industries—it brings a range of benefits to the table
.
- Durability: With its superelastic properties and resistance to deformation, NiTi50 is more durable than traditional metals.
- 다용도성: NiTi50 finds applications in various fields, from medical devices to aerospace, thanks to its unique properties.
- 생체 적합성: One of the few metals that can safely be used inside the human body without causing adverse reactions.
- 내식성: This powder performs well even in harsh environments, making it reliable in the long term.
Advantages vs Limitations:
| 장점 | 제한 사항 |
|---|---|
| Shape Memory Effect & Superelasticity | High material costs |
| Corrosion and Fatigue Resistance | Difficult to machine or process |
| 생체 적합성 | Limited transformation temperature range |
| High Resilience in Dynamic Applications | Requires specific environmental conditions (heat) |
자주 묻는 질문
| 질문 | 답변 |
|---|---|
| What is NiTi50 powder used for? | NiTi50 is used in medical devices, aerospace components, robotics, automotive parts, and consumer electronics. |
| What makes NiTi50 unique? | Its shape memory effect and superelasticity make it unique compared to other alloys. |
| Is NiTi50 biocompatible? | Yes, NiTi50 is highly biocompatible and widely used in biomedical applications. |
| How expensive is NiTi50 powder? | Prices vary, but NiTi50 is generally more expensive than traditional metals, ranging from $800 to $970 per kg. |
| What industries use NiTi50 powder the most? | The medical, aerospace, and robotics industries are some of the biggest users of NiTi50 powder. |
결론
결론적으로 NiTi50 (Nitinol) powder is an incredible material with unique properties that make it suitable for various advanced applications. Whether it’s used in life-saving medical devices or cutting-edge aerospace technologies, NiTi50 offers versatility and performance that few other materials can match.
Its combination of shape memory, superelasticity, corrosion resistance, and biocompatibility ensures that it will continue to be a valuable material in various fields for years to come. However, its high cost and specific processing requirements might limit its use to high-end applications where these properties are truly necessary.
If you’re considering using NiTi50 powder for your next project, weigh its advantages against its limitations to determine if it’s the right fit. The material’s potential is enormous, but its costs and specific handling requirements mean it’s best suited for specialized, high-performance applications.