Fe-Cr-C-Si 계 경면처리 합금의 고압ㆍ수중 마모거동

이권영,이민우,오영민,김영석,김선진,Lee, Kwon-yeong,Lee, Min-Woo,Oh, Young-Min,Kim, Seon-Jin 한국재료학회 2003 한국재료학회지 Vol.13 No.4

The sliding wear behavior of a Fe-base hardfacing alloy was investigated in the temperature range of $25∼250^{\circ}C$ under a contact stress of 15 ksi (103 MPa). The wear loss of this Alloy in pressurized water was less than that of NOREM 02. And galling did not occurred at this alloy in all temperature ranges. It was considered that the wear resistance of this Alloy was attributed to the strain-induced phase transformation from austenite to $\alpha$'martensite during sliding wear.

산릉.영건의궤 분석을 통한 조선시대 건축에서 회벽의 존재 여부 고찰 -조선 후기 관영건축을 중심으로-

이권영,Lee, Kweon-Yeong 한국건축역사학회 2010 건축역사연구 Vol.19 No.3

Since the 1970's, UNESCO and ICOMOS have adopted or emphasized on the principles of historic preservation. One of them is what to require a repair should not be repaired beyond the limits of the features and techniques which had been adopted in those days of establishment. On the premise, this paper is to examine the materials and technique of wall plaster work in the government building constructions in the Joseon dynasty. The result of this examination shall come up with a basic conformity in the case of repairing the building established in the late of Joseon dynasty. This paper is carried out for the proper repair and restoration of architectural cultural properties. Construction reports and other documents in those days are examined for the study. Following conclusions have been reached through the study. The materials and technique which applied to wall plaster work in those days were quite different from the present. The technique that was used to wall plaster of government buildings in those days was not a lime wall plaster, but sand coat one. The kinds of material for setting of the sand coat wall plaster had been revised with the change of the times or constructions. The main kinds of material were composed of sand, white clay, paper fiber, and cereal starch. However, the present materials were composed of sand, white clay. Therefore, the present materials and technique which applied to wall plaster work for the repair and restoration of architectural cultural properties have to be revised and corrected.

친환경 미장재료로서 전통 삼물회(三物灰)의 물성에 관한 실험적 연구 -건조물문화재 보수‧복원을 위한 근거 마련을 겸하여-

이권영 대한건축학회지회연합회 2019 대한건축학회연합논문집 Vol.21 No.4

There were several lime mixtures used for basic materials and wall plastering in building construction in the Joseon Era, one of them is Ocher-Sand Lime(Sammulhoe, 三物灰). It was so excellent one used for Royal Tombs and Palaces. Accordingly, this study aims at figuring out 1) if Ocher-Lime could be applied as modern eco-friendly materials in construction and 2) its performances based on ICOMOS' criteria that 'the parts to be recovered should be done in the scope of specifications and technologies conserved in the time of the construction' in repairing and recovering the building from fire damages, etc. Therefore, ascertaining the materials and mixing rate of Ocher-Sand Lime through the related literature in the Josen Era was conducted, and the experiments on performances for basic and wall plastering materials based on KS testing methods were done as follows: In the experiments, mixing the materials, flow and congelation of the samples before and after hardening, bending and compressing strengths, surface contact angle(water-proofness), permeability, and surface cracking property were tested and analyzed. As a result of the ascertaining, sammulhoe consists basically of lime, sand, and ocher in the ratio of 3:1:1, and is added with elm bark water. For the characteristics of the samples mixed according to the mixing ratio given for the experiments before their hardening, there are some differences depending on conditions of ocher and sand smashed. Congelation time took twice or three times longer than ordinary cement mortar. After hardening, average compressing and bending strengths of sammulhoe ranged in 3~4㎫ and 0.6~0.8㎫, respectively, and it was far weaker than ordinary cement mortar. However, when adding elm bark water, the samples showed some waterproof and permeable characteristics. The surface cracking property was different by their mixing ratio. In order to use traditional construction material, sammulhoe as a modern architecture material, it is necessary to conduct additional ascertaining and research for improving its performances in various areas. 연구수행에 필요한 재료는 모두 국산재료로 사용하고, 가능한 옛 고증문헌에 따라 배합을 실시하였지만, 황토의 경우 전국적으로 분포되어 있으며, 이화학적 성분이 조금씩 차이가 있으므로, 각 지역별 황토를 적용한 실험이 필요할 것으로 사료된다. 또한 배합에 사용된 모래의 경우 강모래와 해안가 모래는 입도분포에 따른 조립율이 다르기 때문에 배합 결과에 많은 영향을 미칠 것으로 사료되는바 이 또한 각 지역별 모래를 수거하여 정확한 입도분포 확인 후 배합을 선정할 필요가 있을 것으로 판단된다. 이에 추후 연구에서 삼물회를 벽 바름재로 적용하여 미진했던 부분을 보완하고 보다 세부적으로 사용 재료에 대한 지역적인 차이와 관련된 사항이 함께 연구될 경우 삼물회의 현장 고증 구현은 가능할 것으로 판단된다.

조선후기 궁궐공사의 목재치련에 관한 연구

이권영,김순일 한국건축역사학회 1999 건축역사연구 Vol.8 No.1

산릉(山陵).영건의궤(營建儀軌) 분석을 통한 조선후기 관영 건축공사의 석회에 관한 연구 - 석회의 생산.조달.적용을 중심으로 -

이권영,Lee, Kweon-Yeong 한국건축역사학회 2009 건축역사연구 Vol.18 No.6

The history to have used lime in building construction was much long without distinction of the East or the West. The ancient nations of korean peninsula had used lime as construction material. The witness was discovered in the kings' tombs of fifth century. In the Joseon dynasty(15~19c), what applied several developed lime compounds to the kings' tombs have been recorded in 'Sanleong-Uigwe(山陵儀軌)' & 'Yeonggeon-Uigwe(營建儀軌)' of those days documents. Therefore, this paper is to examine the whole procedures from the product and provision of lime to its application through those days documents. Following conclusions have been reached through the study. Three lime compounds to be developed for the kings' tombs was extendedly applied to residential government buildings step by step within the current of time. These compounds to be used in the kings' tombs of the Joseon dynasty had been correlated to those of the ancient nations, which were nations of korean peninsula in narrow range, chinese and orient nations in broad range. These compounds have possibilities of development as the environmental-friendly building material. And these compounds should provide a standard specification for conservation & restoration of the traditional and cultural properties. I could confirm that the whole procedures had not been developed within limited space-time of the specified nation & period, but within interactions of the nations & periods. In the periods which disturb its interaction, the expansion of productivity in building construction was interfered.

조선후기 관영건축공사의 회(灰)미장재와 공법에 관한 연구 - 영건의궤(營建儀軌)의 유회(油灰), 수회(水灰), 양상도회(樑上塗灰)를 중심으로

이권영,Lee, Kweon-Yeong 한국건축역사학회 2009 건축역사연구 Vol.18 No.4

Since the 1970's, UNESCO and ICOMOS have adopted or emphasized on the principles of historic preservation. One of them is what to require a repair have not to be repaired beyond the limits of the features and techniques to have been born in those days of establishment. On the premise, this paper is to examine the materials and technique of lime plaster work in order for roof ridge, and for bond paste of stones and bricks in government constructions in the late of Joseon dynasty(17~19c). The result of this examination will come up with a basic conformity in the case of repairing the building established in the late of Joseon dynasty. This paper is carried out for the proper repair and restoration of architectural cultural properties. Construction reports and other documents in those days are examined for the study. Following conclusions have been reached through the study. The components of old plaster mixtures which agglutinate stones each other were quicklime, perilla oil, and paper fiber. The components of old plaster mixtures which point joint of black bricks consisted of slaked lime, perilla oil, paper fiber, and cereal starch. These components were the same as coat surface of roof ridges. In the case of times, one of the following sand, white clay, sap of boiled elm bark was added to these components for the purpose of high efficiency. These materials and techniques which applied to plaster work of those buildings had developed in the process of making royal tombs. But these materials and techniques were quite different from the present.

커뮤니케이션學의 批判理論的 觀點

李權寧 광주대학교 1987 광주개방대학 논문집 Vol.4 No.-

Recently the discussion on the methodology in the field of socialogy is very active. But this Controversy on it seemes to propose a polar conflict than a mutually Complement or better result, because of a mutually exclusive attitude. A word such a critical perspectives or humanistic approach and qualitative approach etc. indicate this situation. Of Course, I think, because a science is not a dogma, those critical controversies are very good. The discussiones over the perspoctives or methodology to explain the social phenomena are as old as a social history The history of the discussion over the perspectives or methodology is that of the endless challengs of critical position against the Dominant perspectives of those days. The Conventional theory - perspectives, the Dominart perspectives are a position to explain the phenomena im terms of the method of positivision - quantificationism behind a structural functionism. In Contrast of this, the critical theory - perspectives are a position to explain them in terms of the method of historical - hermeneutic. This study is focused on as follow: 1. What is the background of the critical theory - perspectives ? 2. How does the critical theory - perspectives of science of communication critisizes the conventional theory - perspectives? 3. How are the trend of the research of critical theory - perspectives of science Communication? 4. What is the meanings and suggestions in terms of methodology in developing the theory of science of Communication? In Conclusion, the discussion suggests the relation of a reciprocal dependence between the Two, the conventional and critical perspectives than the mutually exclusive attitude. M. Weber's suggestions of the subiective explanation on the base of the objective data are very meaningful, and have a powerful persuasion for our discussion. Furthermore, Smith and Manning's proposition of the need of qualitative and quantitative method is mutually complementary for the Two. Thus, in this study, I have reached, when we will use the two methodologies, we can approach a social phenomenon nearer. And I think the critical perpectives enlareged a researcher's insight. In such a sense, it is very meaninful.

방송사 체제의 구조유형에 관한 연구

이권영 광주대학교 2000 社會科學硏究 Vol.10 No.-

통도사(通度寺) 자장암(慈藏庵)의 건축에 내재된 조영의도(造營意圖)와 미의식(美意識)에 관한 연구

이권영,서치상,Lee, Kweon-Yeong,Seo, Chi-Sang 한국건축역사학회 2002 건축역사연구 Vol.11 No.4

This paper aims at proposing constructional intention and aesthetic consciousness in the architecture of Jajang-temple, which was originally built by the great monk, Jajang in 7c. The results are as follows : 1) The layout and form of buildings in Jajang-temple were remarkably followed the situations and shapes of natural rocks related to Gumwa legend about the original establishment of the temple. 2) As natural rocks were penetrated into both the inner and outer space of buildings and so artificial skills were more or less restrained, it seems to be short of geometrical regularity, symmetry and formal integrity. 3) However it can be said that these architectural treatments were based on the aesthetic consciousness, so called In-Cha and Jol-Bak, which were conceived by intellectual elites in Chosun dynasty.

조선후기 관영건축공사에 있어서 철물과 철제 연장의 공급체계에 관한 연구 -영건의궤(營建儀軌) 기록을 중심으로-

이권영,김왕직,Lee, Kweon-Yeong,Kim, Wang-Jik 한국건축역사학회 2007 건축역사연구 Vol.16 No.3

Since the 17th century, the society of Joseon dynasty belongs to a period of rapid transition in many fields. As the building is a result to be produced on the basis of a society and economy, the general transition in a society is to be reflected into a process of building construction. Especially, a study on the material supply system of economic base in a process of building construction is one of vely important factors in an understanding or estimate of a building. On the premise, this paper is to examine the supply system of iron materials and the tools in the construction of the government managed buildings in the late of Joseon dynasty on a viewpoint of productivity. Construction reports and other documents in those days are examined for the study. Following conclusions have been reached through the study. 1) The general supply method of iron materials for a large-scale government construction was based on 'byulgong', that is, a kind of tribute. 2) Various methods were selected in the supply method of iron materials for government use in the late of Joseon dynasty. The priority order of choice in its government policy was put on an easiness of amount security, on a minimum of expenditure, and on an efficiency of construction execution. 3) The manufacturing technique of weaponry was used in the production method of iron materials and the tools for government use. The cooperation of the official, the army, and the merchant had improved the manufacturing technique of building construction.