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김재국,양삼열,정창주 한국세라믹학회 1991 한국세라믹학회지 Vol.28 No.10
The multicrystalline machinable ceramics was fabricated by melting method using domestic pyrophyllite. After determination of optimum crystallization temperature and time from results of DTA, XRD and SEM, base glasses were heat treated by 2-step schedule. Main crystalline phases identified by XRD, EDX were Na-fluorophlogopite, ${\beta}$-spoduemen and ${\alpha}$-cordierite, and the crystallization condition of these crystals was varied with chemical composition, thermal history and nucleation agents. The thermal, chemical properties of prepared samples were excellent.
경주 최부자 가문의 양택을 통해 본 풍수인식에 관한 연구
박성대,양삼열,김병우 부산대학교 한국민족문화연구소 2013 한국민족문화 Vol.47 No.-
The purpose of this study is to research the feng-shui theory reflected in the philosophy of the Choi family upper class by analyzing the conditions of the feng-shui locations of the family-related sites. For this purpose, two residential areas(Chunguidang and Choi's Old House) have been selected. This study shows that two locations are highly suitable to feng-shui theory. The Choi family upper class was a Sajok during the Joseon dynasty in the Gyeong-Ju region who understood feng-shui theory very well. Their recognition of feng-shui was expressed via their search for the best site(Myungdang) and their application of the Bibo concept to improve minor defects in their settlement area in terms of feng-shui. This study is limited to analysis of two residential areas of the Choi family except their graves. Nevertheless, this study shows a part of recognitions of feng-shui of Sajok during the Joseon dynasty in the Gyeong-Ju region. This study helps people better understand the philosophy and thought of the Choi family upper class. 본 연구의 목적은 경주 최부자 가문 유적지의 風水적 특성을 분석하고, 이에 담겨 있는 최부자 가문의 풍수적 인식을 고찰하는 것이다. 이를 위한 연구대상으로 최부자 가문의 주요 양택지 두 곳인 내남 이조리 충의당과 교동 고택을 선정하였다.연구 결과, 충의당과 교동 고택 모두 양택지로서의 길지 조건을 갖추고 있었다. 이를 통해 조선시대 경주지역 사족인 최부자 가문 역시 그들의 생활 철학 속에 풍수적 인식을 상당 부분 보유하고 있었으며, 이러한 풍수적인식이 吉地를 찾고 定住地의 풍수적 결함을 裨補하는 등의 실제적인 노력으로 표출되었음을 알 수 있었다. 그리고 그들의 풍수적 인식이 교동 시대인 조선 후기로 갈수록 발전하였음을 알 수 있었다. 본 연구의 한계점은 최부자 가문의 양택에만 국한된 분석이며, 음택을 연구 대상에서 제외시킨 것이다. 그럼에도 불구하고 본 연구는 조선후기 경주지역 사족의 풍수 인식의 일면을 보여주고, 동시에 최부자 가문의 생활철학과 사상에 대한 이해를 한층 높이는 데에도 일조할 수 있다는 데에 본 연구의 의의가 있다 하겠다.
국내산 납석을 이용한 저팽창성 Machinable Ceramics의 제조
김재국,양삼열,정창주 한국세라믹학회 1991 한국세라믹학회지 Vol.28 No.9
Machinable ceramics containing ${\beta}$-spodumene crystal was fabricated by melting method using domestic pyrophyllite. Raw materials were batched by molar ratio of 8:2, 7:3, 6:4, and 5:5 for fluorophlogopite and ${\beta}$-spodumene. These compounds were melted at 1450$^{\circ}C$ for 1 hr and formed in graphite mold. Base glasses were heat-treated according to 2-step schedule which was determined from DTA, XRD analysis and SEM observation. Fabricated machinable ceramics have excellent themal, chemical properties and machinability.
국내산 납석을 이용한 Machinable Ceramics의 제조
정창주,정회준,양삼열 한국세라믹학회 1991 한국세라믹학회지 Vol.28 No.7
In this study, high quality machinable ceramics was prepared from the K2O-MgO-Al2O3-SiO2-B2O3-F glass system using domestic pyrophyllite. The mixture of pyrophyllite and additives was melted at 1450$^{\circ}C$ for 1 hour and formed in a graphite mold. The base glass was heat-treated at 600$^{\circ}C$ to 1200$^{\circ}C$ with interval of 50$^{\circ}C$ for 3 hours identified by XRD. Crystalline phase were confirmed by XRD and their microstructure was observed by SEM. The glass ceramics which was prepared by heat treatment of base glass at 1150$^{\circ}C$ for short time has good physical, mechanical, thermal, chemical properties and machinability.