The Experts below are selected from a list of 174 Experts worldwide ranked by ideXlab platform

Not Specified - One of the best experts on this subject based on the ideXlab platform.

  • Loading bins. Mount Massey, Waipa Coal Company
    2020
    Co-Authors: Not Specified
    Abstract:

    Loading bins, Mount Massey, Waipa Coal Company, showing railway bins of coal and a corrugated iron shed. Photograph taken by Albert Percy Godber in 1917. Original print in Godber album, Vol 109, p 65 (PA1-q-102) Inscriptions: Album page - Loading bins. Mount Massey. Waipa Coal Co. Quantity: 1 b&w original negative(s). Physical Description: Dry Plate Glass negative 6.5 x 4.75 inches

  • New Zealand soldiers in camp, World War I
    2020
    Co-Authors: Not Specified
    Abstract:

    A New Zealand soldier writes `New Zealand' on the outside of a corrugated iron building to the enjoyment of the other three soldiers who watch. Taken by Henry Armytage Sanders during World War I. Location unknown. Back of file print reads: `The Diggers joke'. Inscriptions: Photographer's title on negative - bottom right - H1019 Quantity: 1 b&w original negative(s). Physical Description: Dry Plate Glass negative 4 x 5 inches

  • Messines battlefield, Belgium, during World War I, with shells bursting in the distance
    2020
    Co-Authors: Not Specified
    Abstract:

    Messines battlefield, Belgium, during World War I, with shells bursting on ruins in the distance. Shows sheets of corrugated iron and tree stumps in a field. Photograph taken circa 1917 by Henry Armytage Sanders. An original print from this negative is in album PA1-f-091 with the caption: "Shells bursting on the ruins of Messines". Inscriptions: Photographer's title on negative - bottom right - H65 Quantity: 1 b&w original negative(s). Physical Description: Dry Plate Glass negative 4 x 5 inches

  • Section of the beach tramway between Karekare and Whatipu, Auckland
    2020
    Co-Authors: Not Specified
    Abstract:

    Section of the beach tramway between Karekare and Whatipu, Auckland. Photograph taken by Albert Percy Godber, between 1915 and 1916. This section of the tramway was an extension of the tramway between Piha and Karekare. It was built to speed the transport of timber to the wharf at Whatipu. Quantity: 1 b&w original negative(s). Physical Description: Dry Plate Glass negative 6.5 x 4.75 inches

  • New Zealand Howitzer Battery - the gun pit
    2020
    Co-Authors: Not Specified
    Abstract:

    Rear view of a gun emplacement of the New Zealand Howitzer Battery. Shows sandbagged tunnel with shells on the ground. Photograph taken 18 August 1917 by Henry Armytage Sanders. Other - An original print from this negative is in album PA1-f-091 Inscriptions: Photographer's title on negative - top right - H197 Quantity: 1 b&w original negative(s). Physical Description: Dry Plate Glass negative 4 x 5 inches

Rui Hong Zhang - One of the best experts on this subject based on the ideXlab platform.

  • The High-Temperature Sealing Research of Vacuum Flat Glass
    Advanced Materials Research, 2013
    Co-Authors: De Qing Tao, Rui Hong Zhang
    Abstract:

    This paper analyzed the deformation and stress of the Glass substrate and the supporting columns in the vacuum Plate Glass in high-temperature sealing process with Ansys, which can forecast and guidance for the vacuum flat Glass of high-temperature sealing. By performance test of vacuum Plate Glass after sealing, conclude the organizational structure of Glass and welding agent junction is well. The vacuum Plate Glass of high temperature sealing has a good sealing performance.

  • Effect of Surface Finish of Braced Pillars on Stress Distribution of Vacuum Plate Glass
    Key Engineering Materials, 2010
    Co-Authors: Rui Hong Zhang
    Abstract:

    The braced pillars were machined by grinding and spark machining. 3-D topography and surface roughness of two kinds of braced pillars were measured. The effect of two kinds of braced pillars on stress distribution of vacuum Plate Glass was analyzed by electrometric method, and was in comparison. The stress distribution of their important sides was obtained such as sealing side, supporting side and braced pillar. The experimental result showed that maximal stress of braced pillar for vacuum Glass occurred in the end side of each braced pillar. Controlling high precision of the brace height and good flatness of the Glass sheet considerably improve vacuum Plate Glass quality, such as its strength, its dependability and service life.

  • Effect of Surface Topography on Stress Distribution of Vacuum Plate Glass for Different Aluminum Alloy Braced Pillars
    Key Engineering Materials, 2009
    Co-Authors: Hong Miao, Rui Hong Zhang, Jian Feng Zhang
    Abstract:

    : The effect of different surface topography on stress distribution of vacuum Plate Glass for the aluminum alloy braced pillars was analyzed by electrometric method. The results show that the maximum stress exists at the interfaces of all experimental Glasses sheet and the top and bottom sides of a brace. The conclusion that the size of contact area between braced pillar and Glass has an impact on stress distribution of the Glass is obtained. The stress-strain field of different vacuum Plate Glasses was analyzed by the finite element method. The stress distribution of their important sides was obtained such as sealing side, supporting side and braced pillar. The experimental results are shown that high precision of the brace height and good flatness of the Glass sheet considerably improve vacuum Plate Glass quality，such as its strength，its dependability and service life.

Helmut K. Schmidt - One of the best experts on this subject based on the ideXlab platform.

  • Enhancement of fracture strength of cutted Plate Glass by the application of SiO2 sol-gel coatings
    Thin Solid Films, 1999
    Co-Authors: Klaus Endres, Martin Mennig, Martin Amlung, Andreas Gier, Helmut K. Schmidt
    Abstract:

    Abstract The influence of SiO 2 sol-gel coatings on the bending strength of soda lime Plate Glass samples has been investigated by 3 point bending and double ring bending strength measurements. The samples were prepared by manual Glass cutting and were coated with two different types of SiO 2 coating: A TEOS coating (thickness of about 100 nm) was obtained from sols synthesized by acid catalysis of tetraethoxysilane and a MTKS coating (thickness of about 1 μm) was obtained from a methyl modified nanoparticulate SiO 2 sol. The coatings were applied by dipping and were densified at 500°C for 1 h. The fracture strength σ 0 of edge coated Plate Glass (60×25×3.8 mm), determined by 3 point bending test (according to EN 843-1), was increased after coating with TEOS from σ 0 =24 MPa to 40 MPa (67% increase). The fracture strength increased to σ 0 =56 MPa (133% increase) on applying MTKS or a double coating of TEOS followed by MTKS. The evaluation of these measurements using Weibull statistical analysis resulted in m values of 4.1 and 4.2 for the TEOS and MTKS coating and 3.5 for double coating (uncoated Glasses m =5.7), respectively. These results combined with high resolution secondary electron microscopy investigations led to the conclusion that the strengthening effect of the two different sol-gel systems is due to a partial flaw healing and clamping of the crack sides.

  • All sol—gel electrochromic system for Plate Glass
    Journal of Non-crystalline Solids, 1997
    Co-Authors: Brian Munro, Stefanie Krämer, Patrick Zapp, Herbert Krug, Helmut K. Schmidt
    Abstract:

    Abstract The development on an all sol—gel electrochromic system for large area devices is described. Previously developed syntheses routes for tungsten oxide, WO3, coating sols and cerium oxide-titanium oxide sols, CeO2TiO2, were employed, which enabled large substrates (35 × 35 cm2) to be coated homogeneously and without visible cracking. Optoelectrochemical measurements were employed to determine the variation of the electrochromic properties (change in optical density, ΔOD, and switching times) of WO3 layers, investigated as a function of coating parameters, such as chamber humidity and the temperature of heat treatment. A novel composite electrolyte system, based on organically modified silanes, was developed, which has an ionic conductivity of ∼10−5 S cm−1 at 25°C. Cells were constructed in two formats: 10 × 15 cm2 and 35 × 35 cm2. Switching times less than one minute were achieved for the smaller format with a change in transmission from 75% to 20% (at λ = 0.633 μm).

Hong Miao - One of the best experts on this subject based on the ideXlab platform.

  • Laser Sealing for Vacuum Plate Glass with PbO-TiO2-SiO2-RxOy Solder
    Sustainability, 2020
    Co-Authors: Hong Miao, Lingcong Zhang, Shanwen Zhang, Saim Memon
    Abstract:

    Laser sealing for vacuum Plate Glass is a key step in developing the cost-effective smart vacuum-Glass window for the drive towards net-zero energy buildings. In this paper, the pores, cracks, and interface with laser welding are analyzed in depth using PbO-TiO2-SiO2-RxOy system sealing solder to prepare vacuum flat Glass. The microstructure of the sealing layer was analyzed by a BX41M-LED metallographic microscope, and the interfacial bonding characteristics were observed by thermal field emission scanning electron microscopy (SEM). The solder was analyzed by an energy spectrometer, and the influence of laser power, sealing temperature, and sealing speed on the gas holes and the crack sand interface separation of the sealing layer are reported. The results show that when the laser power reached 80 W at the welding speed of 2 mm/s, the bulk solder disappeared to most of the quantity and the sealing surface density was higher, due to which negligible pores and micro cracks were found. Thus, the sealing quality of the sealing layer is considered to be suitable when the temperature of 470 °C was maintained and the solder has 68.93% of Pb and 3.04% Si in the atom fraction to achieve the wet the Glass substrate surface whilst improving the bonding quality.

  • Microstructure characteristics of vacuum glazing brazing joints using laser sealing technique
    Optics and Laser Technology, 2018
    Co-Authors: Zheng Yang, Hong Miao, Jian Feng Zhang, Shanwen Zhang, Yanjun Zhang, Qi Zhang
    Abstract:

    Abstract Two pieces of Plate Glass were brazed into a composite of glazing with a vacuum chamber using PbO-TiO2-SiO2-RxOy powder filler alloys to develop a new type of vacuum glazing. The brazing process was carried out by laser technology. The interface characteristics of laser brazed joints formed between Plate Glass and solder were investigated using optical microscope, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) techniques. The results show that the inter-diffusion of Pb/Ti/Si/O elements from the sealing solder toward the Glass and O/Al/Si elements from the Glass toward the solder, resulting in a reaction layer in the brazed joints. The microstructure phases of PbTiO3, AlSiO, SiO2 and PbO in the Glass/solder interface were confirmed by XRD analysis. The joining of the sealing solder to the Glass was realized by the reaction products like fibrous structures on interface, where the wetting layer can help improve the bonding performance and strength between the sealing solder and the Plate Glass during the laser brazing process.

  • Effect of Surface Topography on Stress Distribution of Vacuum Plate Glass for Different Aluminum Alloy Braced Pillars
    Key Engineering Materials, 2009
    Co-Authors: Hong Miao, Rui Hong Zhang, Jian Feng Zhang
    Abstract:

    : The effect of different surface topography on stress distribution of vacuum Plate Glass for the aluminum alloy braced pillars was analyzed by electrometric method. The results show that the maximum stress exists at the interfaces of all experimental Glasses sheet and the top and bottom sides of a brace. The conclusion that the size of contact area between braced pillar and Glass has an impact on stress distribution of the Glass is obtained. The stress-strain field of different vacuum Plate Glasses was analyzed by the finite element method. The stress distribution of their important sides was obtained such as sealing side, supporting side and braced pillar. The experimental results are shown that high precision of the brace height and good flatness of the Glass sheet considerably improve vacuum Plate Glass quality，such as its strength，its dependability and service life.

Jian Feng Zhang - One of the best experts on this subject based on the ideXlab platform.

  • Microstructure characteristics of vacuum glazing brazing joints using laser sealing technique
    Optics and Laser Technology, 2018
    Co-Authors: Zheng Yang, Hong Miao, Jian Feng Zhang, Shanwen Zhang, Yanjun Zhang, Qi Zhang
    Abstract:

    Abstract Two pieces of Plate Glass were brazed into a composite of glazing with a vacuum chamber using PbO-TiO2-SiO2-RxOy powder filler alloys to develop a new type of vacuum glazing. The brazing process was carried out by laser technology. The interface characteristics of laser brazed joints formed between Plate Glass and solder were investigated using optical microscope, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) techniques. The results show that the inter-diffusion of Pb/Ti/Si/O elements from the sealing solder toward the Glass and O/Al/Si elements from the Glass toward the solder, resulting in a reaction layer in the brazed joints. The microstructure phases of PbTiO3, AlSiO, SiO2 and PbO in the Glass/solder interface were confirmed by XRD analysis. The joining of the sealing solder to the Glass was realized by the reaction products like fibrous structures on interface, where the wetting layer can help improve the bonding performance and strength between the sealing solder and the Plate Glass during the laser brazing process.

  • Effect of Surface Topography on Stress Distribution of Vacuum Plate Glass for Different Aluminum Alloy Braced Pillars
    Key Engineering Materials, 2009
    Co-Authors: Hong Miao, Rui Hong Zhang, Jian Feng Zhang
    Abstract:

    : The effect of different surface topography on stress distribution of vacuum Plate Glass for the aluminum alloy braced pillars was analyzed by electrometric method. The results show that the maximum stress exists at the interfaces of all experimental Glasses sheet and the top and bottom sides of a brace. The conclusion that the size of contact area between braced pillar and Glass has an impact on stress distribution of the Glass is obtained. The stress-strain field of different vacuum Plate Glasses was analyzed by the finite element method. The stress distribution of their important sides was obtained such as sealing side, supporting side and braced pillar. The experimental results are shown that high precision of the brace height and good flatness of the Glass sheet considerably improve vacuum Plate Glass quality，such as its strength，its dependability and service life.