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Micro machinable ceramic and manufacturing method of the same
The present invention relates to a micro machinable ceramic and a manufacturing method thereof. A BN-Si_3N_4-based machinable ceramic composite prepared by the present invention has a composition ratio including 40 to 70 wt% of boron nitride (BN), and 30 to 60 wt% of silicon nitride (Si_3N_4), and has a flexural strength in the range of 200 to 500 MPa, and a coefficient of thermal expansion in the range of 2.0 to 5.0^-6 /℃. According to the characteristics, high-strength and high-precision micro-machining is possible, so that the present invention can be used in various industries such as precision machine parts and electronic parts which require dimensional accuracy, such as a hole having a diameter of 40 μm.
본 발명은 미세 가공이 가능한 세라믹 및 그 제조방법을 개시한다. 본 발명에 의해 제조된 BN-Si3N4계 가공성 세라믹 복합체는, 질화붕소(BN) 40 내지 70 중량%, 질화규소(Si3N4) 30 내지 60 중량% 를 포함하는 조성비로 이루어지며, 200 내지 500 MPa 범위의 굽힘 강도와, 2.0 ~ 5.0-6/℃ 범위의 열팽창계수를 지니는 것을 특징으로 한다. 이러한 특징에 따르면, 고강도이면서 고정밀 미세가공이 가능하여 직경 40㎛의 홀(hole) 등과 같이 치수 정밀도가 요구되는 정밀기계 부품이나 전자 부품 등의 다양한 산업에 활용이 가능하다.
Micro machinable ceramic and manufacturing method of the same
The present invention relates to a micro machinable ceramic and a manufacturing method thereof. A BN-Si_3N_4-based machinable ceramic composite prepared by the present invention has a composition ratio including 40 to 70 wt% of boron nitride (BN), and 30 to 60 wt% of silicon nitride (Si_3N_4), and has a flexural strength in the range of 200 to 500 MPa, and a coefficient of thermal expansion in the range of 2.0 to 5.0^-6 /℃. According to the characteristics, high-strength and high-precision micro-machining is possible, so that the present invention can be used in various industries such as precision machine parts and electronic parts which require dimensional accuracy, such as a hole having a diameter of 40 μm.
본 발명은 미세 가공이 가능한 세라믹 및 그 제조방법을 개시한다. 본 발명에 의해 제조된 BN-Si3N4계 가공성 세라믹 복합체는, 질화붕소(BN) 40 내지 70 중량%, 질화규소(Si3N4) 30 내지 60 중량% 를 포함하는 조성비로 이루어지며, 200 내지 500 MPa 범위의 굽힘 강도와, 2.0 ~ 5.0-6/℃ 범위의 열팽창계수를 지니는 것을 특징으로 한다. 이러한 특징에 따르면, 고강도이면서 고정밀 미세가공이 가능하여 직경 40㎛의 홀(hole) 등과 같이 치수 정밀도가 요구되는 정밀기계 부품이나 전자 부품 등의 다양한 산업에 활용이 가능하다.
Micro machinable ceramic and manufacturing method of the same
미세가공이 가능한 세라믹 및 그의 제조방법
AN KI CHOUL (author)
2021-08-19
Patent
Electronic Resource
Korean
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