Nur Hidayah Ahmad Zaidi
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Preferred name
Nur Hidayah Ahmad Zaidi
Official Name
Nur Hidayah, Ahmad Zaidi
Alternative Name
Zaidi, Nur Hidayah Ahmad
Ahmad Zaidi, N. H.
Ahmad Zaidi, Nur Hidayah
Zaidi, N. H.Ahmad
Zaidi, N. Hidayah A.
Zaidi, N. H.A.
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Scopus Author ID
37012813200

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  • Publication
    Fabrication of functionally graded materials from Hydroxyapatite and F75 Cobalt alloy
    (Universiti Malaysia Perlis (UniMAP), 2010-06-09)
    Noorazimah A.
    ;
    Nur Hidayah Ahmad Zaidi
    ;
    Shamsul Baharin Jamaludin
    Functionally graded materials were fabricated using Hydroxyapatite (HAP) and F75 cobalt alloy. Both of these two materials are important in creating biomaterials that is compatible to the human tissue and at the same time have high strength and hardness. The particles size of HAP and F75 were 7.59um and 13.18um respectively. Both raw materials undergo Scanning Electron Microscope (SEM) and X-Ray Diffraction (XRD) to check the morphology and elements content qualitatively. The fabrication technique consists of mixing, pressing and sintering. The pressure used was 511 MPa and sintering temperature were 1200ºC and 1300ºC. The microstructure of boundary area between layers was observed using SEM. The microstructure of functionally graded materials varied gradually according to the composition of HAP and F75.
  • Publication
    Preliminary study on the physical properties of palm ash and PCB waste mixed with phenolic resin
    (Universiti Malaysia Perlis (UniMAP), 2010-06-09)
    Mohd Radzi Ali
    ;
    Shamsul Baharin Jamaludin
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Nur Hidayah Ahmad Zaidi
    ;
    Alida Abdullah
    Brake pad is widely used in automotive industry and consists of various materials including asbestos which is harmful to the human and its production exceeds 10 or more ingredients. In this work, preliminary investigation on possibility to use combination palm ash and PCB waste was carried out in order to reduce harmful materials in brake pad and pollutions. Characterization of palm ash and PCB was done by using XRF, Malvern Particle size and Scanning Electron Microscopy (SEM). The composition palm ash and PCB waste was prepared by pre-mix the palm ash, PCB waste and aluminum powder with phenolic resins in ball mill and then compressed at 122 MPa. Samples were cured at temperature 150°C for 5 minutes. Microstructure, density and porosity, water absorption and compressive test were carried out on the specimens.