Dielectrics

An experimental analysis of the effect of gamma and X-ray irradiation with dose rate 0.25 -6mSv/h on low-density polyethylene (LDPE) and PMMA samples is presented. The focus of attention is on their DC conductivity as a dielectric of a capacitor.

10p tohitohi 19-05-2020 31 2   Download

The thesis aims to produce nanoparticles (dielectric, ferrites, ferromagnetic, metal) and their nanoparticles. Find the optimal technology process, suitable for making absorbent samples. Survey the basic properties of fabricated nanomaterials. Measuring and studying the effects of microwave absorption in magnetic-dielectric nanoparticles, absorption mechanisms and dependence of absorbing properties on the parameters of materials, thereby finding solutions Enhance absorption capacity as well as adjust absorption parameters.

28p xacxuoc4321 09-07-2019 29 4   Download

The goads of this thesis: Successfully fabricated ceramic piezoelectric samples (Ba1-xCax) TiO3 (BCT) and BZT-BCT by solid phase synthesis method. BZTBCT materials must be good quality, high piezoelectric coefficient (500-600 pC / N). Studying the relationship between morphological competition and dielectric ferroelectric properties, especially with the high piezoelectric properties of materials.

26p xacxuoc4321 09-07-2019 52 7   Download

Trong bài viết này, tác giả xem xét hiện tượng truyền năng lượng cộng hưởng giữa hai phân tử trong sự hiện diện của khối trụ điện môi. Kết quả số cho thấy tốc độ truyền năng lượng có thể tăng hoặc giảm nhiều bậc do ảnh hưởng của khối trụ. Hấp thụ vật chất có xu hướng làm giảm độ truyền năng lượng cộng hưởng, đặc biệt ở các khoảng cách xa.

8p thiendiadaodien_3 27-12-2018 46 3   Download

(BQ) This study was made only for the finish stages and has been carried out on the influence of five design factors: intensity supplied by the generator of the EDM machine (I), pulse time (ti), duty cycle (η), open-circuit voltage (U) and dielectric flushing pressure (P), over the two previously mentioned response variables. This has been done by means of the technique of design of experiments (DOE), which allows us to carry out the above-mentioned analysis performing a relatively small number of experiments.

8p xuanphuongdhts 27-03-2017 55 2   Download

(BQ) Electrical Discharge Machining (EDM) is a non-traditional machining process which has the ability to machine hard, difficult to machine materials and the parts with complex internal shapes by using precisely controlled sparks that occurs between an electrode and a work piece in the presence of a dielectric fluid.

9p xuanphuongdhts 27-03-2017 68 3   Download

(BQ) Electrical Discharge Machining (EDM) is a non-traditional, thermo electrical process, which erodes material from the work piece by a series of discrete sparks between the work and tool electrode immersed in a liquid dielectric medium.

7p xuanphuongdhts 27-03-2017 46 3   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Polycrystallization effects on the nanoscale electrical properties of high-k dielectrics

9p sting05 09-02-2012 40 6   Download

Tuyển tập các báo cáo nghiên cứu khoa học trên tạp chí khoa học vật lý quốc tế đề tài: Structural and Dielectric Properties of the Mn-Doped BaO-Nd2O3-4TiO2 System

10p hoami_266 15-09-2011 49 5   Download